Two Pack Includes - One Original Traditional Swim Cap with Chin Strap in Cool Classic White, and One Swim Cap with pretty Flowers (pink, yellow and orange) by AquaPro. Made in finest quality rubber it"s soft and supple and easy to slip on. One size only, Adult, these swim caps fit a little more comfortably than standard swim caps and are easier to pull on. See tagged Pic #4 for illustrationSwim caps really aren"t meant to be watertight, your hair may well get wet (our hair, ears and shape of our heads make it almost impossible to get a completely watertight seal) but by wearing a cap it helps prevent chlorine/oil etc., from damaging your hair because wearing a swim cap prevents that wash through that loose hair gets. Swim caps also helps stop loose hair covering your face while swimming, and help prevent loose hair clogging pool filters. The Benefits of a Swim Cap: Hair care professionals recommend protecting your hair. Chlorine and salt water both dry, discolor, and damage hair. Chlorine binds to the hair, filling in gaps in the hair shaft. Mineral deposits in salt water make hair brassy and brittle. Both severely dehydrate hair making it not only lose it"s natural sheen but also creating "split ends". A color and treatment hair specialist from one of New York"s leading salons recommends wearing a swim cap to help protect your hair from this damage. Protect your hair, wear one of our caps and be the center of fashion too!