SIZE: S: palm width 7-8cm; M: palm width 8-9cm; L: palm width 9-10cm; XL: palm width 10-11cm. Material thickness: Neoprene + double-sided nylon cloth composite, with a total thickness of 3mm Sewing type: bonding + mazli neoprene COMFORTABLE FIT: five finger dive wetsuit gloves made with 3MM neoprene to give you a flexible and comfortable fit, you have less restrictions and less hand fatigue during water sports PROTECTION: This kayaking canoeing gloves with anti-slip design on palm and warm thermal materials to protect your hands from hurt by rocks or other sharp objects and keep warm while underwater, besides, the easily adjustable velcro strap can cover your wrist tightly, provide extra fit and prevent sands or other small things coming in, just enjoy it safely (However, kindly be noted it is not a completely waterproof product, but a diving equipment to match wetsuits ) WIDE APPLICATION: This swimming surfing gloves with hi-grip textured palm that helps provide secure handling of lights, slates and other small items, wonderful for snorkeling, swimming, scuba, surfing, sailing, kayaking, diving, perfect gift idea for mother, father, family, friends, lover.. .