This is one well made Balaclava. Waterproof, Windproof and Breathable, it also has an insulating Thermacel fleece lining, which is gentle on the skin. OXPROTEX© is used on OXFORD ChillOut clothing wherever there is risk of wind chill or rain affecting the rider. Dupont CoolMax© has legendary properties as a breathable material, capable of 'wicking' away more liquid from your skin than your body can produce