Made with wide, absorbent terry cloth, 6630 High-Performance Skull Caps protect you from perspiration from eyes, face and glasses. They provide a layer of safety by avoiding injuries related to moisture in eyes. Headbands also prevents heat-related illnesses by keeping the head cool and protected from the sun. Hi-Cool moisture-management fabric is stretchy enough to fit most heads. Low-profile design fits comfortably under a hard hat or helmet. They are great for construction workers, landscapers, roofers and more. Use sweatbands to reduce the risk of heat stress while mountain biking, motorcycling, gardening, hiking, playing sports and more.