Designed to keep you warm in the cold, original Buff will also wick moisture (sweat) away from your skin to keep you cool when it is hot. The lightweight, breathable, microfibre fabric is extremely comfortable to wear. Uses: original Buff can be worn as a neckerchief, headband, wristband, mask, hair-band, balaclava, scarf, headband, scrunchie, saharaine, pirate cap, beanie and bandana. Technical features: made with 100% polyester microfibre. Weights: 35g/1.2 oz and Measures52 cmx 24.5cm 20 5inches x 9.6inches. Sizing: fits most adults, but if you require something smaller, try womens slim fit, junior/child (4-12 yrs) baby (3 yrs and under). there are no irritating seams or hems. Is machine washable and non iron. Treated with polygiene your Buff headwear will remain fresh as the silver ions prevent the build up of bacteria in the fabric. Certified to meet oeko-tex standard 100. Thermal comfort - warm.