Water Resistance & Stretchy: Made of 2mm neoprene and double-sided nylon cloth, well stretchy, resistance to water, perfect to wear under water. Palm circumference 18-20 cm, suitable for adults and children. Webbed Fingers Design: There are stitches positioned between the fingers, so that it keeps the unfolded shape of the palm while swimming in the water and does not move. After wearing it, looks like duck webs, and the forward speed in the water will bedoubled when paddling. Thumb Enclosed Design: In order to prevent too much water from being stored in the webs, so that the water can flow out along the fingertips, the thumb is closed, and the other four fingers are exposed, which brings a better experience to the user. Adjustable Wrist Strap: The hook and loop fastener on the wrist is convenient for putting on and taking off, and the tightness of the wrist can also be adjusted according to the comfort. Great For All Kinds Of Water Sports: This webbed swimming gloves is designed to increase forward speed for both surface and underwater swimming while protecting your hands and keeping them warm underwater for long periods of time. Perfect for an upperbody workout in the pool, help tone and strengthen muscles.