1. ADJUSTABLE AND ELASTIC - These rag caps have adjustable straps, you can tie the cap as tight as possible, with good elasticity, one size fits you best, you can stretch to fit your head, and won't fall off2. PREMIUM MATERIAL - Our helmet liner is made of bird's eye cloth, which is breathable and sweat-wicking, and dries quickly to absorb sweat from sports or workouts. Guaranteed comfort3. MULTIFUNCTIONAL ACCESSORIES - These cool skulls are thin and have good sun protection and moisture wicking properties to keep you cool and comfortable after a workout or other exercise, a useful accessory for most people4. Wide range of uses - Our hoods can be widely used in various outdoor activities, such as cycling, running, jogging, mountaineering, fitness, motorcycles, travel, shopping, etc., suitable for use alone or as a helmet wire