From the makers of the Original Ear Band-It® headband. Developed by a board certified Ear, Nose & Throat Physician. After 20 years of development we are proud to introduce the new and improved Ear Band-It® Ultra!What makes the Ear Band-It® Ultra the best swimmer"s headband on the market? The Ear Band-It® Ultra is made from our custom-designed, embossed neoprene on the inner side of the headband providing extra grip on the forehead, ears, and back of the head to avoid slipping during most types of water activity. It also contains 4.0mm 100% neoprene instead of 2.0mm-3.0mm neoprene blend that other headbands use. This gives the Ear Band-It® Ultra unparalleled strength and comfort. The unique shape of the Ear Band-It® Ultra is different than the Original Ear Band-It® headband and other swimming headbands. The ear flaps are larger which increases the surface area, creating more grip and better coverage of the ear itself. Also the bridge at the forehead has been widened, which adds strength, reduces the potential for tearing at this stress point, and increases skin contact surface area for better grip.Size SMALL: Recommended for ages 1 to 3. Fits head size range 16"-20"Size MEDIUM: Recommended for ages 4 to 9. Fits head size range 17"-21"Size LARGE: Recommended for ages 10 to Adult. Fits head size range 19.5"-24"