Zan Headgear Helmet Liner Black Nylon Dome. This cold weather head gear is made of a durable nylon fabric. Its lightweight and provides easy storage for repeated use. Specifications for Zan Head Gear Black Nylon Dome Helmet Liner: Manufacturer: Zan Headgear Hat Size US: One Size Color: Black Features of Zan Head Gear Nylon Skull Cap: Non-bulky Durable nylon fabric Easy storage Fits easily under helmet Package Contents: Zan Headgear Nylon Helmet Liner ND001