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Named "Best Overall Base Layers for Women" by GearJunkie (2025-2026). Meet the new and improved Women's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan favorite...

Built to fit, flex, and follow you like a shadow, our Women's Intraknit™ Thermal Merino Base Layer Bottom uses our innovative 3D knitting technology to create our most insulated, ventilated,...

Our Women's Intraknit™ Thermal Merino Base Layer Hoodie is a lightweight, super-moveable top with a helmet-compatible hood that’s made for your most extreme cold-weather activities. Merino wool yarns and gender-specific...

This minimalist-style crew is anything but insignificant. Our Women's Intraknit™ Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With...

If your undies aren't comfy, you won't be either. That's why we've designed the Men's Boxer Brief with features like a double front panel for extra support and seams that...

Our Men's Merino Boxer takes all of the tech you love from our Merino boxer briefs—a lightweight feel, breathability, anti-stink Merino—and adds a looser fit. With a fully functional fly...

Our Men's Merino Sport Fleece Pant features super-soft, unbelievably comfortable Merino next to skin, while a durable synthetic outer material helps provide additional weather protection in harsh conditions. Flatlock seam...

Take on the whipping winds in the Men's Active Fleece Wind 1/2 Zip. The windproof front panel, complete with a DWR  finish, helps protect you from the elements, while the...

Feel warmth and comfort that never quits in our Men's Smartloft Pant. This cold-weather essential uses a 50% recycled wool insulation, with two different insulation zones, plus a DWR finish...

The ultimate cold-weather jacket. Our Men’s Smartloft™ Hooded Jacket uses a 50% recycled wool insulation, with two different insulation zones: 60g and 40g. A DWR finish helps protect you from...

Spring skiing or summer camping? The year-round Men's Classic All-Season Merino Base Layer Long Sleeve is game for either. With our Core Spun technology, we've wrapped lightweight Merino around a...

Get the comfort and warmth of our warmest-weight base layer in a pullover with our new Men's Merino 250 Base Layer Hoodie. Featuring a mountain-inspired pattern and a higher neck...