The Zan Headgear® Micro-Mesh Series provides moisture-comfort & helps keep your head temperature regulated. All the heat will get released through the mesh, so sweat does not build up, & features a sewn-in absorbent terry cloth sweatb&. Flat seams in order to fit comfortably underneath helmets or alone while providing coverage of the head. Features Fabric is breathable for warmer weather conditions 2-way stretch for customizable fit