The Aqua Sphere Swim Fitness Glove is a swim training tool designed to create water resistance to help you build up your upper body strength when swimming or doing aqua aerobics. It fits snugly and fixes securely at the wrist with Velcro. The webbed fingers have open tops for you to “feel” the water.FeaturesResistance: these swim gloves create water resistance to make it harder for you to pull your arms through the water, strengthening your upper body muscles. Swim gloves can be easier to wear than hand paddles and give a less intense workout. Great for wearing when aqua jogging to make.Specifications Flexible Neoprene. Small – Youth Medium – Women Large – Men or women with larger hands Sold as a pair.