Winning CM-20 boxing mitts are standard size and very lightweight. These mitts are perfectly suited for training focused on technique with targeted punches. They are made of high quality synthetic leather. Handmade in Japan. Widely regarded as the manufacturer of the best boxing equipment in the world, Winning has established itself as the gold standard of boxing equipment for decades. Used by countless professionals and champions such as Floyd Mayweather Jr, Manny Pacquaio, Canelo Alvarez, Conor McGregor and more... Winning continues to maintain its reputation as a leading manufacturer of high-end boxing equipment.