Icebreaker made its Men's BodyFit 260 Apex Legging With Fly out of merino wool to do more than just keep you warm. It regulates your body temperature so you're neither too warm nor too cold. It breathes so you don't stifle with heat exhaustion after an intense ski session. And it's antimicrobial so the legging stays fresh after days of use. Icebreaker stitched the backside so there isn't a center back seam to add bulk to your ski attire. The brushed elastic waistband feels soft next to your skin, and a gusseted crotch offers the unrestricted movement you crave when you're on the slopes.