Product Description 1.Anti-skid designOur silicone swim cap is Snug fit for optimum performance which Contoured shape reduces drag for outstanding hydrodynamic performance.swimming cap has durable and elastic surface that provides comfortable feeling. Anti-slip design and easy to take on/off. 2.Comfortable and dryOur silicone swim cap for hair covers the head snugly, and doesn't move or slide. Your hair will be fully protected by a cool swim caps and will always stay dry. 3.ElasticitySwim caps can be stretched to more than 2 times their original size with featuring great elasticity. Can be stretched easily for optimum fit for men, women and youth. Since it is lightweight, you barely feel. 4.CompatibilityThis black swim cap extra room for a comfortable fit short / long or curlier Hair. Keeps your hair locks secure and tangle-free when you swimming in the pool. 5.GiftIt is a great gift for swimming lover too.but can't be 100% waterproof.Swim cap is keep your hairstyle unchanged and Create good streamline as less resistance in swimming.