Underwear

Simple but practical, our Men's Active Ultralite Short Sleeve tee is soft yet functional, for all-day comfort and utility. Its super-light performance fabric—a blend of ZQ-certified Merino wool with TENCEL™ Lyocell fibers—this performance fabric will help keep you cool when your intensity amps up, and its design helps minimize chafing. Plus, it's odor-resistant, breathable, and temperature-regulating, all helpful features when you work up a sweat. With a body-hugging athletic fit, this tee will keep you looking and feeling good, whether you're pumping iron at the gym or hitting the trail for a hike.

Keep your ski boots, hiking boots, and running shoes free of bulk and friction with the Men's Classic Thermal Merino Base Layer 3/4 Bottom. 100% responsibly sourced Merino wool provides ultimate breathability and comfort, while a newly redesigned base layer pants fit helps reduce sag and excess fabric - perfect for your layering needs.

Smartwool is printing a pattern on their Men's Merino 150 Print Boxer Briefs— bringing you the ultimate in Merino comfort with a fun, mountain-inspired design. The Core Spun technology beefs up garment durability without sacrificing next-to-skin comfort by wrapping high-quality, super-soft Merino around a nylon core for every thread in the150 fabric. The wide, Merino-lined elastic waistband and flatlock seam construction will help make these boxers your new favorite for any activity—from urban exploration to finding adventure on new trails.

SAXX's 22nd Century Silk is made for luxe-ing up your lower half. Made using an uber-soft silk blend, 22nd Century is the crème de la crème of comfort. Jazz up your everyday wardrobe with this classy collection.

Elevating your everyday. Designed with the same moisture-wicking material as the best-selling Vibe, Ultra delivers maximum softness and breathability. Double up with this premium 2-pack.

Elevating your everyday. Designed with the same moisture-wicking material as the Vibe Super Soft, Ultra delivers maximum comfort and breathability. Double down with this premium 2-Pack.

From the Vibe Super Soft Collection. Fuss-free layering is as easy as Vibe. This best-selling style comes in a slim fit, and is cut from a breathable, moisture-wicking fabric that’s so soft you won’t want to take them off. Vibe is available in SAXX's widest range of prints, and features the patented BallPark Pouch™ technology. You'll find a pair to suit whatever vibe you’re feeling.

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Pure odor control keeps things fresh. Fair Trade Certified™ sewn.

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Pure odor control keeps things fresh. Fair Trade Certified™ sewn.

A classic, all-around polyester baselayer with 100% recycled content. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Fresh durable odor control keeps things fresh. Fair Trade Certified™ sewn.

A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Pure odor control keeps things fresh. Made in a Fair Trade Certified™ factory.

Versatile year-round base layer bottoms made with 100% merino wool and a slim fit, the 175 Everyday Leggings offer premium breathability, odor-resistance and next-to-skin comfort. Perfect layering for Autumn to Spring, hitting the slopes or just in need of some added warmth from an extra layer during the work week.

A classic, all-purpose base layer T-shirt made with soft and breathable 100% merino wool fabric, the 175 Everyday Short Sleeve Crewe is as versatile as it is comfortable.

Versatile year-round base layer bottoms made with 100% merino wool and a slim fit, the 175 Everyday Leggings With Fly offer premium breathability, odor-resistance and next-to-skin comfort.

The versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is Icebreaker's best-selling base layer top.

A versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Short Sleeve Crewe is Icebreaker's best-selling base layer top. Fibers that regulates the body temperature in all weather conditions, along with resisting odors; gusseted underarms for mobility and comfort

The benchmark against which all others are judged, the 200 Oasis Shorts feature the most versatile merino jersey fabric for year-round layering performance across any activity.

Classic boxer briefs made with a stretchy slim fit and their corespun fabric, the Anatomica Boxers are supportive and comfortable for daily life and active pursuits.

Classic boxer briefs made with a stretchy slim fit and Icebreaker's corespun fabric, the Anatomica Boxers with Fly are supportive and comfortable for daily life and active pursuits.

The pro cyclists we work with know the importance of the right base layer for the conditions. The Pro Mesh is made for the widest range of conditions and is designed to keep you dry in cool to mild temperatures. We’ll even put it under a Flanders Warm base layer in the coldest conditions. We’ve given it a graphic print so you can show off that you have something special when you open your jersey zip.

An exceptionally light base layer that manages moisture and controls odor beneath second-skin cold-weather layers or as a standalone top during indoor training. Thermal, weatherproof equipment is no longer the bulky PVC rain capes and adapted ski jackets of decades past, so—at the request of Assos' WorldTour riders—they tailored a long-sleeve base layer to provide summer-worthy wicking and odor control that fits unobtrusively beneath race-tuned equipment like our Spring Fall Jersey or Jacket. In cool or cold weather, transporting internal moisture is as important as keeping the external elements out, especially during intense training or racing, when a series of intervals, hill repeats, or attacks can lead to lingering moisture, a clammy chill, and frigid misery. Alternatively, full-arm wicking is a must for indoor training, when moving through the air isn’t constantly keeping your arms dry.

A slim, padded bike boxer brief, designed to cushion under casual clothes or baggies for quick comfort wherever the day takes you. A front cut-away keeps things cool by relieving heat build-up around sensitive areas. This is the new go-to hidden layer suited to getting to work, bikepacking trips, and any ride that ends at a brewery. Stay loose. Stay cool. This is the foundation we build on.