GelTech Super Bag Boxing Gloves for Muay Thai, MMA, Kickboxing, Boxing GelTech Super Bag Gloves combine injected machine molded foam technology and gel, positioned over the knuckles, part of the palm is made of mesh for ventilation, Leather construction, with Thumb attached for added safety, Velcro elastic strap for secure wrist support. Regular weighs 12oz Large weighs 16oz