Shinmax Swim Caps Waterproof Swimming Caps-One Size Adult Swimmer Silicone Hat [PULL ELONGATION] : Special Discount for New Year, Shinmax Swim Caps regular length is 22.3cm/8.77"and its max diameter can stretch to 30cm/11.23" [DURABLE, COMFORTABLE TO WEAR, NEVER FALL OFF WHEN YOU USE, AND UNISEX FIT]: Shinmax Swim Caps are designed to be extremely durable and made out of the absolute best Silicone, eco-friendly,odorless and allergy-free ,comfortable to wear, never fall off when you wear, and they fit both men and women. [FULL COVERAGE]: Shinmax Swimming Caps are designed to completely cover your hair and ears, enjoy your swimming experience at its best, keeping them from water exposure. [NO DRAG IN WATER]: Want more speed? You've got it.You can free yourself from drag in this Shinmax Swim Caps, due to the premium silicone Swim Caps, you can enjoy swimming in your own rhythm. [MULTI COLORS FOR YOUR CHOICE]: 7 colors available, like red,black,yellow,light blue,pink and white.You can choose what you like.