|Occunomix Terry Toppers Deluxe Hard Hat Sweatband 882. Absorbent comfort for hard hat wearers! Double napped (both sides) cotton terry plus a middle layer durable foam sponge. 12mm thick. Installs in an instant with insulated metal stays - no fumbling with snaps.One size fits almost every hard hat. Patent #5,826,279.Reversible.Machine washable.