Before you head out to the mountains or a new cold-weather adventure, throw on our Men's Merino Sport 250 Bottom and enjoy the comfort and performance of responsibly sourced Merino wool. Our minimal Merrow seam construction provides superior durability while keeping super-soft material next to skin. Our warmest Merino/poly blend helps move moisture, dries quickly, and holds its shape— no matter how active you get throughout your expedition. Gender-specific, body-mapped panels of lighter fabric offer additional breathability, while reflective elements help provide additional visibility in low-light conditions. These men's base layer pants will equip you with everything you need and more to win the day.