Tops

The Men's Classic Thermal Merino Base Layer Colorblock Crew features 100% responsibly sourced Merino wool made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance. With shoulder panels and a flatlock seam construction, this base layer brings consistent comfort, as well as reliable warmth and durability, to winter hiking, running, and skiing.

This minimalist-style crew is anything but insignificant. It is a lightweight, super-moveable top, perfect for all of your sweatiest cold-weather activities. With Merino Sport yarns and gender-specific ventilation perfectly placed to maximize thermoregulation and breathability in high-intensity activities, it helps amplify moisture management, movement, and comfort.

Wonderfully-patterned and even more comfortable, Smartwool's Men's Intraknit Thermal Merino Base Layer Pattern Crew uses Smartwool's latest and greatest technology to help keep you warm as you wander and get active. This Smartwool base layer is 3D-mapped for a near-custom fit and freedom of movement, while ribbed elbows provide extra flex room. New technology allows Smartwool to seamlessly knit mesh ventilation in gender-specific zones designed to help keep your body dry and warm as you venture out in comfort.