Technical, cold-weather base layer bottoms for highly aerobic days, the 260 Zone Leggings feature zoned ventilation panels for active temperature regulation and ample breathability.Features BodyFitZone™ - features breathable zones for high intensity activity Gusset for mobility and comfort Flatlock seams to prevent friction Specs Product weight: Small= 192 g / 6.76 oz Inseam Length: 73.5cm based on size M Fabric content: Body: 97% Merino Wool, 3% Elastane, Panels: 100% Merino Wool, Eyelet: 98% Merino Wool, 1% Elastane, 1% Nylon Fabric weight: 260 Midweight Care: Machine wash warm. Wash with like colors. Do not use softeners. Fasten all closures to wash and dry. Do not bleach. Do not tumble dry. Line dry in shade. Warm iron. Do not iron print, trims and accessories. Do not dry clean.