Our best-selling base layer bottoms made from soft and breathable 100% merino wool jersey, the 200 Oasis Leggings are the perfect foundation for your cold-weather layering.Features 100% Merino - Soft merino fibers that regulates body temperature in all weather conditions and resists odors Gusset for mobility and comfort Flatlock seams to prevent friction Specs Fabric Weight: 200 Lightweight Fabric: 100% Merino Wool Product Weight: Large = 216 g / 7.61 oz