Base Layer - Tops

Your baselayer sets the tone for how comfortable you'll be during the day. That's why you'll want the one with temperature regulation, moisture man...

Over forty years ago Terramar was the first company to introduce pure silk performance base layer products. Today, Thermasilk is still the standard...

The Below Zero Crew is the perfect piece to keep you warm. The extra durable four way stretch provides support and ease of movement in all directio...

The Cloud Nine Performance Scoop is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features a...

The Below Zero Half-Zip Top is the perfect piece to keep you warm. The extra durable four way stretch provides support and ease of movement in all ...

The Cloud Nine Scoop Neck Top is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features an u...

Meet the new and improved Women's Merino 250 Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new color options and an enhanc...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ Fresh durable odor control for daily use. The Capilene Midweight Crew hi...

With its innovative, seamless, 3-D knit structure, our Capilene Air Hoody offers amazing warmth and comfort range. An airy blend of 51% responsibly...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ Fresh durable odor control for daily use. The Capilene Midweight Zip-Nec...

Buy the Wool Thermo T-Shirt w/Inlay locally.

Buy the Wool Thermo LS w/Inlay locally.

Buy the Super Thermo SS Tee locally.

The Men's Intraknit Merino 200 Colorblock 1/4 Zip proves what's in the best baselayers: Merino wool. It helps with moisture management, temperature...

With its innovative, seamless, 3-D knit structure, our Capilene Air Crew offers amazing warmth and comfort range. An airy blend of 51% responsibly ...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ Fresh durable odor control for daily use. The Capilene Midweight Crew hi...

Our most versatile baselayer: warm, breathable, quick-drying and with HeiQ Fresh durable odor control for daily use. The Capilene Midweight Zip-Nec...

Capilene Air is the most advanced baselayer we've ever made. It has the greatest range of warmth and comfort of any of our baselayers, insulates ev...

You'll love the innovation of the Intraknit Merino wool in this 1/4 zip women's baselayer, because it helps with moisture management, temperature c...

Our Women's Merino 250 Base Layer Pattern Crew has been elevated to help bring you more comfort to conquer cold weather days and activities. We've ...

Meet the better-than-ever Men's Merino 250 Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to impro...

This ultra-lightweight base layer is perfect for year-round layering, whether you're taking on the Nordic trails or heading out for a cooler-weathe...

Buy the Wool Thermo LS w/Inlay Women's locally.

An all-season favorite, wear the Merino 150 Long Sleeve as a baselayer in fall or as a single layer when summer backpacking calls. Featuring Core S...