Base Layer - Tops

Built from the same moisture-wicking fabric as the Core Lightweight Hoody, our Core Lightweight Crew LS makes for a solid base layer. Whether used ...

Our 100% Merino wool base layers are a wardrobe essential for every explorer, but this men's top is fashionable enough to wear out on the town, too...

Our new and improved Women's Merino 250 Base Layer 1/4 Zip is here to bring you a better feeling, better performing, and better-looking garment. As...

Layer on the comfort with the new Women's Classic Thermal Merino Base Layer 1/4 Zip Plus. This must-have base layer features 100% Merino wool fabri...

We've updated the fit of our Women's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest...

A lightweight and fast drying technical tee made with Motiv Aero single jersey with odour control technology and fast wicking properties, ideal for...

You'll never want to take off the Women's Classic Thermal Merino Base Layer Crew. Whether you have a weekend full of relaxation ahead of you or you...

We've updated the fit of our Men's Merino 250 Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest b...

Our Women's Merino 250 Drape Neck Hoodie is a fan favorite, with its relaxed fit, flatlock seams to help eliminate chaffing, and 100% ultra-soft Me...

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...

Originally produced to meet US Army specifications, our Military Fleece Crew has become a favorite of hunters, fishermen and other outdoors people ...

The Thermolator 2.0 Crew Neck Top is the ideal piece for all day warmth and comfort while being out in the elements. This versatile piece features ...

Originally produced to meet US Army specifications, our Military Fleece Crew has become a favorite of hunters, fishermen and other outdoors people ...

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...

Spring skiing or summer camping? The year-round Merino 150 Base Layer Long Sleeve is game for either. With our Core Spun technology, we've wrapped ...

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...

This minimalist-style crew is anything but insignificant. It is a lightweight, super-moveable top, perfect for all of your sweatiest cold-weather a...

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...

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...

Our warmest midlayer for cold days, the M's Thermal 1/4 Zip Top adds warmth on its own, or layer it under your favorite jacket to dial in reliable ...

Simms' Lightweight Baselayer Top is the essential next-to-skin layer for building a rock-solid foundation that prioritizes all-day mobility, warmth...