Baselayer

Light, comfortable trim-fit base layer for mixed output in cool temperatures. RHO Thermally efficient base layer with excellent moisture management...

Performance base layer for lower output activities in cool to cold temperatures. | LT: Lightweight. RHOThermally efficient base layer with exc...

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

This minimalist-style crew is anything but insignificant. Our Men's Intraknit™ Thermal Merino Base Layer Crew is a lightweight, super-moveable top...