Winter Camping

With cutting edge Triangular Core Matrix™ construction and ThermaCapture™ technology, the XTherm NXT delivers a 7.3 R-value while weighing just 15.5 oz (439 g) in the Regular size. Put another way, the best warmth-to-weight ratio of any sleeping pad ever created. It is warmer, lighter and thicker than the previous model, which is why the XTherm NXT cements the legacy of being the go-to sleeping pad for alpinists, mountaineers and extreme cold expeditions. At 3-inches thick, with horizontal baffles, all-night comfort and support are at hand, while 70D nylon on the bottom ensures the XTherm NXT holds up to extended expedition use. The WingLock™ Valve allows for rapid inflation and deflation but is also intuitive and easy to use in frigid weather when the gloves are not coming off. If reliable overnight warmth is the demand no matter how far the mercury dips and space in the pack is at a premium, there’s no finer sleeping pad than the XTherm NXT. Weight: 454 g / 1.0 lbs R-Value: 7.3 (4 Season, approx. -30C) Thickness: 7.6cm / 3.0"

With cutting edge Triangular Core Matrix™ construction and ThermaCapture™ technology, the full-rectangular shaped XTherm NXT MAX delivers a 7.3 R-value while weighing just 680 g (24 oz) in the Large size. Put another way, the best warmth-to-weight ratio of any rectangular sleeping pad ever created. It is warmer, lighter and thicker than the previous model, which is why the XTherm NXT MAX cements the legacy of being the go-to rectangular sleeping pad for alpinists, mountaineers and extreme cold expeditions. At 3-inches thick, with horizontal baffles and the added sleep surface of the rectangular shape, all-night comfort and support are at hand, while 70D nylon on the bottom ensures the XTherm NXT MAX holds up to extended expedition use. The WingLock™ Valve allows for rapid inflation and deflation but is also intuitive and easy to use in frigid weather when the gloves are not coming off. When you absolutely need to be warm no matter the weather, want plenty of sleep surface but space in the pack is at a premium, there is no finer sleeping pad than the XTherm NXT MAX. Weight: 642 g / 1.44 lbs R-Value: 7.3 (4 Season, approx. -30C) Thickness: 7.6 cm / 3.0"

Packed with features needed for cold-weather camping, the Questar™ offers supreme comfort and versatility. When you need feature-packed comfort for frigid backcountry conditions, it’s time to pack the Questar 0F/-18C. Thermarest has loaded this bag with the comfort features that Therm-a-Rest bags are known for. The Thermarest SynergyLink™ Connectors integrate the bag with your sleeping pad while allowing our Zoned Insulation to keep fill where you need it most. The fit of the bag has been perfected in our onsite cold chamber to create our W.A.R.M. fit that allows room for multiple sleep positions without compromising thermal efficiency. Stuffed with water-resistant 650 fill Nikwax Hydrophobic Down certified by the Responsible Down Standard, the four-season Questar is ready for your next backcountry adventure. The Questar is offered in three sizes, and designed to fit both men and women. Compression sack and storage sack included. Weight: 1.21kg / 2.67lbs Fill: 650 fill power Nikwax Hydrophobic RDS Down Fill Weight: 820g / 1.81lbs Bag Shape: W.A.R.M. fit

Stretch knit top and extra-thick foam combine for unmatched self-inflating comfort for backpackers. For unprecedented comfort during your backcountry adventures, the Trail Pro brings year-round warmth and legendary Therm-a-Rest support. The self-inflating foam measures 3 inches (7.6 cm) and features our StrataCore construction, a design that provides the best warmth-to-weight ratio of any self-inflating foam construction. The Trail Pro’s 4.4 R-value allows adventurers to enjoy backpacking and camping year round. The versatile self-inflating pad features the high-performance WingLock valve, which has three-times the airflow rate of the classic valve thanks to a larger opening and one-way inflation. Like all Therm-a-Rest pads, the Trail Pro is made in market to ensure quality and minimize environmental impact. The pad includes a compact stuff sack. Weight: 820g / 1.81lbs R-Value: 4.4 (3-4 Season) Thickness: 7.6cm / 3"

Lightest, most compact closed-cell foam pad with boosted warmth. Always a favorite of the ultralight elite, the Z Lite SOL expands upon the utralight performance of the Original Z Lite by adding our reflective ThermaCapture™ coating to capture radiant heat and increase overall warmth by nearly 15%. Factoring in the system of heat trapping dimples, the Z Lite SOL has an R-Value of 2.0, making it perfect for use on its own in warmer weather or layering under another pad for extra warmth in the cold. The proprietary foams are softer on top for extra comfort and denser on the bottom for extra durability, making the Z Lite SOL an idealclosed-cell foam pad for those in need of an ultralight, highly compact and super-reliable sleep system. Weight: 410g / 14oz R-Value: 2.0

With its accordion-style design and closed-cell foam construction, the Z Seat camping seat is an ounce-counter's solution to on-the-spot comfort. It's virtually indestructible and superlight, making it ideal for backpacking, ski touring and relaxing on rough terrain. Available with or without our warmth-boosting, reflective ThermaCapture™ surface treatment, there’s hardly a place that the added comfort isn’t worth it.

Lightest most compact closed-cell mattress. Still a favorite of the ultralight elite, the Z Lite mattresses are the lightest, most compact closed-cell mattresses. Both the Z Lite SOL and the original Z Lite feature a compact accordion-style shape and heat-trapping dimples. The Z Lite SOL adds a reflective ThermaCapture™ coating that helps capture radiant heat, increasing overall warmth by nearly 20%. The proprietary foams are softer on top for extra comfort and denser on the bottom for extra durability. Wherever you’re headed, a Z Lite mattress is the right choice for ultralight warmth, durability and comfort. Weight: 410g / 14oz R-Value: 1.7

New to Smartwool's innovative Intraknit™ line is the Men's Intraknit™ Merino 200 1/4 Zip. This Smartwool® base layer is 3D-mapped for a near-custom fit and freedom of movement. Its engineered construction helps enhance your performance with a lighter weight and cleaner finish. If you're looking for base layer clothing for cold weather, this one uses Merino Sport yarn that combines the power and benefits of Merino wool with the durability and fast dry times of polyester—creating the ultimate performance-ready top for all of your high-energy activities.

This minimalist-style crew is anything but insignificant. It is a lightweight, super-moveable top, perfect for all of your sweatiest cold-weather activities. With Merino Sport yarns and gender-specific ventilation perfectly placed to maximize thermoregulation and breathability in high-intensity activities, it helps amplify moisture management, movement, and comfort.

Wonderfully-patterned and even more comfortable, Smartwool's Men's Intraknit Thermal Merino Base Layer Pattern Crew uses Smartwool's latest and greatest technology to help keep you warm as you wander and get active. This Smartwool base layer is 3D-mapped for a near-custom fit and freedom of movement, while ribbed elbows provide extra flex room. New technology allows Smartwool to seamlessly knit mesh ventilation in gender-specific zones designed to help keep your body dry and warm as you venture out in comfort.

Enginereed to keep you warm at the lightest weight and smallest compressed size The Spark Ultralight Mummy Sleeping Bag Series spans everything from an ultralight down-filled liner, to a mid-winter fast-and-light sleeping bag. Each model uses premium materials and no-frills design to provide cutting-edge performance. Ultralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user. Weight: 225g / 7.9oz Fill: Ultra-Dry Down 850+ Loft Fill Weight: 100g / 3.5oz Compressed Volume: 0.9L

The THERMOLITE® Reactor™ Extreme is the warmest backpacking knit sleeping bag liner offered by Sea to Summit. The hollow fiber threads work just like the hollow fur of a polar bear in that they trap heat effectively. When the mercury drops you'll appreciate the mummy shape and drawcord hood with mini cord lock attached. Depending on your environment and sleep conditions, this liner can increase your sleeping bag warmth by up to 14C/25F.

This aptly named sleeping bag and down blanket is the traveler's best friend. Whether you are on a summer bike tour, or a hut trip, or couch surfing, or simply stuck at an airport or ferry terminal, the Traveller unpacks from an almost impossibly small compression sack to reveal a rectangular sleeping bag which can also unzip to form a quilt. Two different fill weights of 750+ loft RDS-certified ULTRADRY Down™ are available: both models feature a drawcord foot box which cinches tight for warmth or opens for ventilation. Weight: 420g / 14.8oz Fill: 750+ loft RDS-certified ULTRADRY Down™ Fill Weight: 200g / 7.1oz Compressed Volume: 1.6L

Combining 800FP goose down with heat reflective TILT technology and a GORE-TEX INFINIUM™ WINDSTOPPER® outer, the Andes Infinium offers an exceptional warmth to weight ratio ideal for expeditions in freezing conditions. Offering refuge to those exploring the world’s highest peaks and the polar regions, the Andes Infinium is packed with cutting edge tech, built to keep you warm. The Andes Infinium 800 is filled with 800g of ultra-high lofting 800FP, goose down. It is constructed using trapezoid shaped boxwall baffles, which stack together reducing cold spots and maximise the lofting and efficiency of the down inside. Reflecting heat towards the body, our TILT technology is seen as a silver sheen on this inside of the bag. Reducing heat loss by up to 32%, TILT substantially improves thermal insulation without compromising pack size, breathability, or weight. It has a mummy fit and offers a similar level of warmth to our Expedition range of sleeping bags, but in a lower bulk package. The GORE-TEX INFINIUM™ WINDSTOPPER® outer provides a robust, windproof shield against icy chills, and the face baffle and 3D neck collar cinch in snug around the face to seal in the heat. The ¾ length YKK® zip has its own internal baffle to avoid heat escaping and an angled foot box allows for a comfortable sleeping position. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. Bag Weight: 1.375 kg / 3.03 lbs Fill: 800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish Fill Weight: 800 g / 1.76 lb Bag Shape: Wide Mummy

The Argon Pants are filled with the highest quality 800FP ethically sourced European Goose Down. Designed to be worn over a baselayer, the Argon offers extra comfort and warmth around basecamp, in a bivi or to increase your sleeping bag’s performance. They pack down nice and small, and the provided stuff sack makes it a no brainer to carry them with you on your expedition, providing you with a boost of warmth when you need it most. Technical features include a tough and durable Pertex® Microlight outer, stitch through construction to eliminate cold spots and a 2-way front fly zipper.

The warmest in the Ascent range, the Ascent 1100 is a 650FP duck down-filled, adventure-ready sleeping bag with a recycled Pertex® Quantum outer. Designed with a comfortable wide shape, it's ideal for those buying their first down sleeping bag for extremely cold conditions. The Ascent 1100 is an extremely warm bag with a comfortable, wide mummy fit. Filled with 1100g of 650FP duck down and with space for wearing additional layers if needed, this bag can be used in seriously cold temperatures. Ideal for winter use or even as high altitude, base camp refuge. The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught. Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or headlamp, a cotton storage sack, and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together. Bag Weight: 1.725 kg / 3.80 lbs Fill: 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish Fill Weight: 1.1 kg / 2.43 lbs Bag Shape: Wide Mummy

The warmest in the Ascent range, the Ascent 1100 is a 650FP duck down-filled, adventure-ready sleeping bag with a recycled Pertex® Quantum outer. Designed with a comfortable wide shape and women’s specific fit, it's ideal for those buying their first down sleeping bag for extremely cold conditions. The Ascent 1100 is an extremely warm bag with a comfortable, wide mummy fit. Filled with 1100g of 650FP goose down and with space for wearing additional layers if needed, this bag can be used in seriously cold temperatures. Ideal for winter use or even as high altitude, base camp refuge. The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. The women’s specific shape is slightly shorter in length, narrower at the shoulders, and wider at the hips than the regular fit bag for improved efficiency. The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught. Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or a headlamp, a cotton storage sack and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together. Bag Weight: 1.67 kg / 3.68 lbs Fill: 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish Fill Weight: 1.10 kg / 2.43 lbs Bag Shape: Wide Mummy

A very warm, 650FP duck down sleeping bag with a recycled, wind-resistant Pertex® Quantum outer. Designed with a comfortable wide shape, it's ideal for those buying their first down sleeping bag for use in cold, winter conditions. The Ascent 900 is a very warm bag with a comfortable, wide mummy fit. Filled with 900g of 650FP goose down and with space for wearing additional layers if needed, this bag can be used in cold temperatures. Ideal for four season use, in winter conditions similar to those in the UK, New Zealand or Scandinavia. The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught. Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or headlamp, a cotton storage sack and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together.

A very warm, 650FP duck down sleeping bag with a recycled, wind resistant Pertex® Quantum outer. Designed with a comfortable wide shape and women’s specific fit, it's ideal for those buying their first down sleeping bag for use in cold, winter conditions. The Ascent 900 is a very warm bag with a comfortable, wide mummy fit. Filled with 900g of 650FP goose down and with space for wearing additional layers if needed, this bag can be used in cold temperatures. Ideal for four season use, in winter conditions similar to those in the UK, New Zealand or Scandinavia. The women’s specific shape is slightly shorter in length, narrower at the shoulders, and wider at the hips than the regular fit bag for improved efficiency. The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught. Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or a headlamp, a cotton storage sack and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together. Bag Weight: 1.475 kg/ 3.25 lbs Fill: 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish Fill Weight: 900g / 1.98 lbs Bag Shape: Wide Mummy

With lightweight, 100% recycled fabrics, high-loft down and body mapped baffles, the Women’s Electron Pro Jacket is one of the most efficient midweight technical down jackets the mountaineer can buy. The Women’s Electron Pro Jacket is designed for fast, flexible mountain insulation. Built from 100% recycled 20D Pertex® Quantum Pro with a DWR coating, it uses 800FP down with a hydrophobic Nikwax® treatment for improved weather resistance and faster drying. Subtle updates to the style, fabrics and features make the latest version of our best-selling Women’s Electron Pro Jacket one of the world’s most advanced mountaineering down layers.

If you're heading for the likes of the Himalaya, the Positron Pro is a down-filled jacket with zoned construction to optimise warmth and mobility whilst minimising bulk, so you can endure prolonged exposure to very cold conditions. If you're heading for the likes of the Himalaya, the Positron Pro is a down-filled jacket with zoned construction to optimise warmth and mobility whilst minimising bulk, so you can endure prolonged exposure to very cold conditions.

The ultimate in a multifunctional lightweight 4 season wonder. The Optimus Vega roars past its competitors that gasp and wheeze as soon as the temps go down. Colder than 0°C? Just invert the gas fuel cartridge using the integrated stand so you deliver liquid fuel. You can keep the soup going down to minus 20°C even! Need more power? Kick in the “turbo boost” in 4 season mode to pare cook time by 20%. The lowest profile in its class, the high-output burner is versatile and stable enough for a pan or for a large pot so you can whip up what your heart desires. Plus, a precise flame control gets you a slow simmer sans burn. Included windscreen keeps big breezes away from your stoves burner. Weight: 178g / 6.3oz

Sonic is built to be the only bag you need from -20°F to 40°F. The Backpacker Editors’ Choice award-winning big-mountain bag offers exceptional warmth and tuneability with a reduced environmental impact. This bag features our next-generation Thermo Gill™ vents, with a new multistage zipper system that dramatically increases the usable temperature range of the bag and allows fine-tuning of comfort from within. Sonic’s chevron baffle construction better compartmentalizes down, eliminating migration and keeping the down evenly lofted. (Not to mention, it looks awesome.) The shell and liner fabrics are 100% recycled fabrics and bluesign® approved, and the premium 800 FP hydrophobic down is 100% Responsible Down Standard (RDS) certified. Years of history in the field yielded detailed upgrades on this bag, including a perfected profile, redesigned draft collar, and bolstered draft tubes. The proven Nemo Toester™ footbox keeps feet warmer, provides a waterproof barrier against tent wall condensation, and protects down from moisture while drying damp clothes inside the footbox. Adaptable to whatever the mountain throws at it, Sonic continues to reverberate as the ultimate extreme weather companion. Bag Type: Mummy Bag Weight: 1.47kg / 3.25lbs Fill: 800 FP PFC-Free, RDS certified hydrophobic down? Fill Weight: 790g / 1.75lbs Compressed Volume: 9.6L

NEMO redefined the classic closed-cell foam sleeping pad to deliver more thickness and plush comfort in an industry-leading packed size. Switchback™ features hexagonal nodes, which are molded with our dual-density Axiotomic™ foam to create Hypnoelastic™ zones that conform to your body in a perfect balance of comfort and support. Switchback™ also leverages a metalized thermal film layer to efficiently reflect heat back to your body. Blend that with 15% more heat-trapping space, this new innovative design is able to deliver a warmer, more comfortable sleep than other pads in this category.

Curl up in comfort with the Women's Ouray 0° Sleeping Bag. With 650-fill-power down plus a cinchable draft collar to prevent heat loss, this sleeping bag is built for overnights in temps down to single digits. The women-specific cut keeps warmth where you want it, and dual-side zips make it easy to climb in and out. Looking for more room? Open the footbox for space to stretch or zip it up for extra warmth. Unzip the extended zipper flaps on extra-cold nights for blanket-like coverage. Bag Weight: 1.74 kg / 3.84 lbs Fill: Down defender, 650 Fill Power, Duck Down Fill Weight: 1.09kg / 2.41 lbs

The Access 3 tent lets you spend comfortable days in the winter backcountry without hauling around the weight of a large mountaineering tent. Warm, light and strong, this four-season tent provides the protection that skiers, splitboaders and snowshoers need for camping in less severe conditions, such as those near tree-line. The robust frame withstands overnight snow loading, and is quick to set up in the cold. Whether your party is base camping to access powder lines or completing a multiday traverse, the Access 3 tent is warm enough for cold winter nights, yet light enough to keep you nimble while on the move. Floor Area: 3.8 sq m / 41 sq ft Weight: 1.99kg / 4.39lbs Vestibule Area: 1.62 sq m / 17.5 sq ft

The Dragonfly stove takes precision-simmering performance and puts it in a chassis that’s built to handle a variety of fuels and the frequent use dished-out by global vagabonds. Tough and stable, it also excels in institutional and guide service settings, easily handling pots up to 10” in diameter. Its dual-valve design delivers the flame control you need for simmering sauces, and goes from zero to searing at the twist of a knob for melting snow and brewing-up fast.

Expedition-grade, all-season tent for two. A strong, four-season refuge for two mountaineers, the Remote 2 tent offers the protection you need with the livability that keeps you levelheaded for days or weeks in the harsh alpine. Built to withstand fierce winds and heavy snow loads, the double-wall tent features a sturdy central-support frame and nearly indestructible Easton® Syclone™ poles. New rainfly vents reduce condensation, and snow flaps seal out spindrift. With its spacious interior and gear-harboring vestibule, the Remote 2 tent becomes a secure haven when you’re hunkered down on the side of a mountain. Tent Floor Area: 3.06 sq. m / 33 sq. ft Weight: 3.03 kg / 6 lbs 11 oz

The upgraded Whisperlite International multi-fuel stove takes advantage of nearly 20 years of proven field use and feedback to make one of our most versatile stoves even better. The most notable improvement is a one-piece, stamped stainless steel leg assembly that boosts stability and simplifies maintenance while also reducing weight. Combined with a collection of subtle engineering refinements to boost overall efficiency, the WhisperLite International stove will remain the top choice for globetrotting backpackers seeking lightweight and compact multi-fuel versatility. Improved Multi-Fuel Performance: Burns white gas, kerosene, and unleaded auto fuel. Lighter & More Stable: Stamped stainless steel legs greatly improve stability and reduce weight. Compact: Folds small and fits inside most MSR® pots. Field Maintainable: Self-cleaning Shaker Jet™ technology and new, one-piece leg assembly allow fast cleaning and maintenance in the field. Includes: Fuel pump, windscreen, heat reflector, small-parts kit, instructions, and stuff sack. (Fuel bottle not included.)

The hybrid-fuel WhisperLite Universal stove delivers the ease and simmering capabilities of canister fuel, and switches easily over to liquid fuels for longer trips, cold-weather, and international use. The MSR patent-pending AirControl™ technology is what really makes it unique, delivering outstanding performance with all compatible fuels. It’s also the lightest stove in its class, offering excellent stability and easy maintenance, adding to the reasons this could be the only stove you’ll ever need. Weight: 320g / 11.2oz Boil time (white gas), 1 liter: 3.5 minutes