The Rival Boxing RB5 Bag Mitts are a step back to a time when a glove was designed to promote both accuracy and correct punching techniques, as well as strengthening your hands. The RB5 Bag Mitt gives you that bare fist, power punching feel along with zero-resistance, high impact training designed to trigger your fast twitch muscles. Features: Ultra-thin EVA padding for the Ergo Lite System. Constructed of premium quality leather. Hook and loop wrist strap system. Rival woven label on strap. Printed Rival graphics. Sizing: Small - Up to 135 lbs. Medium - 135 to 154 lbs. Large - 160 to 190 lbs. X-Large - Over 200 lbs. Please note style of mitts may vary from what is pictured.