The tightness of back of double-layer gloves can be adjusted in order to fit closer the hands, which is more comfortable and safe. The uneven back of gloves is applied the strong tough glue injection processing, which is comfortable to wear and can well protect hands. That will be safer. The materials of gloves' finger part are applied the synthetic leather, which is wear resistant and durable, which is the ideal choice for challenging operations. In the part of gloves' palm and fingers are there liners made of pup, which can increase wear resistance and reinforce the comprehensive protection of hands when you are in exercise. Moreover, it is made of microfiber fabric, which is anti-skipping and dry fast. The full-finger design ensures that it has maximum touch feeling in hand and super durability. The back and finger joint are of the thickening processing, which is handsome attractive and can better protect it. The double-layer back design can adjust size of waist, which makes it better-looking, safe and comfortable. The nylon cord on the waist is convenient to put it on quite soon. Material: Super fiber Function: Anti-skip, anti-thorn, anti-static,low temperature and keep warm Model: Half-finger Length: S: 8.26-8.66 inches M: 8.66-9.45 inches L: 9.45-9.85 inches XL: 9.85-10.25 inches Hand circumference : S: 3.54 inches M: 3.94 inches L: 4.5 inches XL: 4.6 inches Note: Recommended to wash by hands. Place gloves into a laundry bag before washed by machine.