Ring to Cage Gym Bag - Convertible Backpack Duffel Equipment Bag for Muay Thai, MMA New convertible design. Use it as a Duffel Bag or Backpack. Easily convertible the backpack in to the duffel bag to sore ore gear by simply unclipping the shoulder strap, unzip the bottom to extend. Great for team gear or to carry all of your training gear in one bag Large central and side compartments one on each side. Mesh exterior for airing out your gear after workout. Rip-stop nylon mesh construction. The main compartment offers up plenty of room for all your MMA Muay Thai equipment and its constructed of heavy-duty material for great long-lasting durability. With lots of storage areas including earphone opening, water bottle holder. Without converting to large size: 11 width x 14 length x 19 height. After converting to large size: 11 width x 14 length x 27 height