Product Details Neoprene glove with webbed fingers and rubber palm. Adjustable wrist closure. Flexible webbing for water resistance training. Increases propulsion through the water. SIZING:Measure the width of your palm horizontally.SMALL = 8.0 cmMEDIUM = 8.5 cmLARGE = 9.0-9.5 cmEXTRA LARGE = 10.0-10.5 cm