Base Layer Tops

Ultra-breathable mountaineering base layer vest A successful expedition starts with the right base layer. With an open mesh-like construction, the custom-developed Polartec® Alpha® Polypropylene fabric combines unbelievable warmth with accelerated breathability. During intense activity, the highly hydrophobic fabric draws moisture away at an incredible...

Ultra-breathable mountaineering base layer vest A successful expedition starts with the right base layer. With an open mesh-like construction, the custom-developed Polartec® Alpha® Polypropylene fabric combines unbelievable warmth with accelerated breathability. During intense activity, the highly hydrophobic fabric draws moisture away at an incredible...

Breathable multisport performance t-shirt When you want to turn up the intensity, this technical first layer has your back. Moisture-wicking, quick-drying 100% recycled polyester helps you feel airy and cool throughout the day – no matter how sweaty the challenge. And long-lasting bio-based HeiQ...

Breathable, quick-drying mountaineering t-shirt For everything from fast-and-light outings to multi-day trips. When worn as a base layer, the breathable Polartec® Power Dry™ fabric wicks away moisture for next-to-skin comfort. In warmer temps, this lightweight, abrasion-resistant tee is ideal for wearing on its own...

UV blocking, lightweight t-shirt Your new go-to t-shirt for sunny outdoor adventures. The 100% recycled polyester knit provides UPF 50+, shielding your skin from harmful UV rays. Breathable, quick-drying fabric wicks away sweat to help keep you cool in the heat. Plus, bio-based HeiQ...

UV blocking, lightweight t-shirt Your new go-to t-shirt for sunny outdoor adventures. The 100% recycled polyester knit provides UPF 50+, shielding your skin from harmful UV rays. Breathable, quick-drying fabric wicks away sweat to help keep you cool in the heat. Plus, bio-based HeiQ...

Breathable half-zip performance t-shirt When you want to turn up the intensity, this technical first layer has your back. Moisture-wicking, quick-drying 100% recycled polyester helps you feel airy and cool throughout the day – no matter how sweaty the challenge. The half zip provides...

Straight-cut organic cotton t-shirt A comfortable, mid-weight t-shirt with natural breathability for daily life, easy hikes and mellow climbs. Made with 100% organic cotton, this t-shirt provides all-day comfort year round. It also features a crew neck with double-stitched tape and shoulder seams for...

Breathable, quick-drying mountaineering t-shirt For everything from fast-and-light outings to multi-day trips. When worn as a base layer, the breathable Polartec® Power Dry™ fabric wicks away moisture for next-to-skin comfort. In warmer temps, this lightweight, abrasion-resistant tee is ideal for wearing on its own...

All-natural performance tee A true outdoor all-rounder, the Tree Wool tee is all about high performance versatility. Merino wool and Lyocell – a biodegradable fiber extracted from sustainably grown wood – deliver great performance and unrivalled comfort. The 100% natural fiber blend is breathable...

All-natural performance tee A true outdoor all-rounder, the Tree Wool tee is all about high performance versatility. Merino wool and Lyocell – a biodegradable fiber extracted from sustainably grown wood – deliver great performance and unrivalled comfort. The 100% natural fiber blend is breathable...

Quick-drying mountaineering long-sleeved top For everything from fast-and-light outings to multi-day trips. When worn as a base layer, the breathable Polartec® Power Dry™ fabric wicks away moisture for next-to-skin comfort. In warmer temps, this lightweight, abrasion-resistant top is ideal for wearing on its own...

Breathable multisport performance t-shirt When you want to turn up the intensity, this technical first layer has your back. Moisture-wicking, quick-drying 100% recycled polyester helps you feel airy and cool throughout the day – no matter how sweaty the challenge. And long-lasting bio-based HeiQ...