Less resistance and reduction of drag through, our hydro dynamic, wrinkle-free design makes you swim faster. Suitable for male and female swimmers.Greater durability than latex swimming caps – will last for thousands of hours in the pool. Made from 100% premium quality, silicone for maximum stretch and strength because of its tear-resistans. Silicone swim caps are also odorless and non-toxic, thus they are ideal for people with latex allergies and can create a healthy swimming environment.These swim caps are primarily made to keep hair away and reduce water resistance to let you focus on what you really want – Swim! They protect your hair and ear from bacteria, chloride and other substances. Note though that these swim caps aren’t fully waterproof.