Seirus Innovation Micro Dome Liner Balaclava Headwear, One Size, Black Shell: 100% Nylon Palm Patch: 100% PVC Lining & Insulation: 100% Polyester Imported COMFORTABLE - Microfleece band with Coolmax jersey crown and Lycra spandex binding for comfortable all day wear HEAD AND EAR PROTECTION - Thin, 4-way stretch fabric contoured for ear coverage VERSATILE - Can be worn under helmets, hats or by itself for added warmth ULTRA THIN - Dome Liner wicks away moisture and dries quickly to keep you warm ESSENTIAL EQUIPMENT - A must have Accessory for skiing, snowboarding, and any cold weather outdoor activity