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Bag Liners

Sea to Summit Adaptor Coolmax Sleeping Bag Liner - Mummy
$79.95
The Adaptor™ COOLMAX® sleeping bag liner is an excellent versatile choice that adapts to varied temperatures and humidity. The knitted COOLMAX® fabric is incredibly stretchy, super soft and luxuriously comfortable. It wicks moisture away from your skin, which helps keep you comfortable as temperatures rise and humidity increases, guaranteeing a great night’s sleep. This sleeping bag liner is ideal for use on its own in warm, humid climates, or as a liner inside your sleeping bag as you transition across seasons. A sleeping bag liner is imperative for keeping your sleeping bag clean and is easily washable. Weight: 248g / 8.7oz Dimensions: 210x92x62cm / 82x36x24"
Sea to Summit Adaptor Coolmax Sleeping Bag Liner - Traveller
$84.95
Sea to Summit's Coolmax® Adaptor liner offered in the popular 'Traveller' rectangular shape with pillow insert. The Adaptor™ COOLMAX® sleeping bag liner is an excellent versatile choice that adapts to varied temperatures and humidity. The knitted COOLMAX® fabric is incredibly stretchy, super soft and luxuriously comfortable. It wicks moisture away from your skin, which helps keep you comfortable as temperatures rise and humidity increases, guaranteeing a great night’s sleep. This sleeping bag liner is ideal for use on its own in warm, humid climates, or as a liner inside your sleeping bag as you transition across seasons. A sleeping bag liner is imperative for keeping your sleeping bag clean and is easily washable. Weight: 328g / 11.6oz Dimensions: 225x92cm / 85x36"
Sea to Summit Spark Sp0 Down Sleeping Bag (+10C)
$369.00 - $399.00
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
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner (adds up to 14C)
$109.95
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.
Sea to Summit Traveller I Down Sleeping Bag (+10C)
$319.00 - $349.00
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
Sea to Summit Thermolite Reactor Compact Plus Sleeping Bag Liner (adds up to 11C)
The THERMOLITE® Reactor™ Compact sleeping bag liner is the ideal choice for gram counters under 6 feet. It essentially uses a combination of two weights of THERMOLITE® fabric, with the thicker more insulative being strategically placed across the torso and in the feet area. The hollow core fibers work like the fur of a polar bear in that they are incredibly insulating and trap heat effectively. This sleeping bag liner keeps your sleeping bag clean and is super easy to wash. It will bump up the warmth of your sleeping bag temperature rating up to 11C depending on your environment and conditions.
Sea to Summit Thermolite Reactor Sleeping Bag Liner (adds up to 8C)
The Reactor is made from Thermolite®, a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Adds up to 14 degrees F / 8 degrees C of warmth to a sleeping bag or, used alone, is the ideal warm weather bag.
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