Sector 9 Mens Boxer Gloves 50% leather, 10% polyester, 10% Neoprene, 15% Spandex, 15% other Delrin Ergo pucks, Carbon fiber knuckle guards, leather palm and glove underside, 3mm vibration foam on palm Rubber reinforced fingers & thumb, Neoprene wrist guard, Velcro closure 50% Leather 10% Polyester/ 10% Neoprene/ 15% Spandex/ 15% Other Delrin Ergo pucks Carbon fiber knuckle guards Leather palm and glove underside 3mm vibration foam on palm Rubber reinforced fingers & thumb Neoprene wrist guard Velcro Closure