Patagonia Men's R1 Thermal Fleece Bottoms 2026

From backcountry powder stashes to frozen winter trails, the Patagonia Men's R1 Thermal Fleece Bottoms are the ideal baselayers for active comfort in the cold. Designed to keep you warm with moisture-wicking, ultra-soft fleece lining, they help you stay dry and comfortable no matter how intense your activity gets. The stretchy material moves with you, while zippered hand pockets give you extra storage for every adventure. With an adjustable drawcord waist, these bottoms offer a custom fit that stays put, so you never have to slow down, no matter the temperature.