Genuine 'Thermal' Buff Headgear - for keeping your head warm on those cold days in the tree. Keeps your helmet clean too! Seamless, tubular, Thermal Buff is made with Thermolite, an excellent insulating fabric, manufactured from hollow-core fibres. It also wicks body moisture away from the skin to help maintain body temperature and wearer comfort in cold weather. Thermal Buff incorporates two retro-reflective stripes of 3M Scotchlite for enhanced visibility in poor light conditions.