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. 100% Merino wool (excluding waistband) - Soft, lightweight and naturally odour resistant fibre that keeps you warm when it's cold and cool when it's warm. Gusset for mobility and comfort. Contoured pouch with functioning fly. Flatlock seams to help reduce friction.