Cooling Skull Cap Helmet Liner | SUPSBL31

Cooling Material: helmet liners are made of milk silk that has a cooling feel, nice elasticity, breathable and sweat absorbent features; Suitable for Under Helmets and Hard Hats: say goodbye to smell, sweat and itchy sensations; One size to fit most people and a variety of activities; This is an excellent promotional product for all kinds of sports and will have long-lasting promotional effects!