Features: 1. The skull cap is made of Fleece, kind of knitting fabric with super soft sense of touch and greater thermal retention. Anti-static, non-pilling, non-shrunk. 2. Excellent Thermal Retention and Performance Moisture Wicking:Wicks moisture and dries quickly, keep you warm on the cold weather. 3. One size fits most : skull cap can be stretched easily,suitable for man and woman.head circumference: about 53-61cm. 4. Washing instructions: washed by hand or machine in cold water, hang dry, no need dehydration. 5. Ideal for :training, running, climbing, hiking, skiing, snowboarding, water sports, in fact any situation where you need to protect your head against sunburn.