Midweight base layer bottoms perfect for skiing, winter hiking, or cold-weather layering, the 260 Tech Leggings With Fly are a warmer version of our best-selling Oasis Leggings, made with 100% merino wool. Icebreaker 260 Tech Leggings With Fly Features: 100% Merino - Soft merino fibers that regulates body temperature in all weather conditions and resists odors Gusset for mobility and comfort Contoured pouch with fly Flatlock seams to prevent friction Inseam Length: 78.1cm based on size L