Assos intermediate headband s7 ultrathin low volume headband for the first cooler days of the year it works as a thermo insulator and sweatband and is ideal for the springfall climarange one piece ultraflat seamless construction for maximum comfort under the helmet the ultralight fibers are made of featherweight polypropylene and elastane and feature a hollow construction to ensure speedy effective wicking properties composition 85pp 15ea