FORGET SWEATING AND DISCOMFORT: wicking helmet liner soaks up your sweat and keeps it out of your eyes. Recommended for athletes, heavy sweaters and guy who do real work. DESIGNED TO BE WORN UNDER HELMETS HARD HATS: Say goodbye to smell, sweat and itchy sensations. Our breathable skull cap helmet liner both protects your skin and keeps sweat away from it. Comfortable feelings guaranteed. COOLING MESH ICE SILK SKULL CAP HELMET LINER: Youll feel cool as soon as you put this on, because our skull cap literally cools your noggin with its moisture activated cooling fabric. and the top of the head seems to have its own fan. VARIOUS USAGE: The skull caps can be worn by men and women for different activities indoors or outdoors. Its a one size fits all: hard hat, motorcycle, cycling, walking, hiking, jogging, running, workout, cross training, gym, tennis, basketball or whatever you want. SUN PROTECTION: Elastic and breathable skull cap protects your noggin from harmful UVA and UVB rays (whether you're bald or not). Which can be applied for a long time, brining your a comfortable wearing experience. Quantity issued: 1