Wear it on your neck, over your face, as a headband, pulled up as a beanie to keep your head and ears warm, under your helmet or as a sweatband, the Altitude Merino Neck Tube?is the perfect adventure accessory.? Designed to fit?comfortably within other ioMerino layers, the Neck Tube?covers the exposed areas of your neck?while still having enough length to pull up over your chin and lower face, and?covering the back of your neck when tucked into helmets and beanies. Tag-free and flatlock stitching help eliminate chafe and maximize comfort. The anti-freeze properties of MicroMerino? prevent condensation build up on the Neck Tube and stop it from freezing, and the antimicrobial properties mean it?s anti-odour and anti-germ. Made with 170gsm lightweight 96% superfine Australian Merino and 4% Elastane MicroMerino? - for an easy four-way stretch. The Altitude Neck Tube is perfectly thin but incredibly warm and keeps in more heat for its weight than any other garment.