Thick padded foam reinforced with hard polymer sheets provide a semi-rigid structure to store up to 60lbs of games and accessories when using the included chest strap.EASY ACCESS GAME POCKETS: Store card decks and other pocket sized games in the exterior zippered pockets and use the larger pocket for game accessories including buzzers, pencils, notepads, and more. SIDE POCKETS AND STRAPS: Hold rollable battle maps using the netted pockets and adjustable straps or use them to hold water bottles and other accessories for your next game night. INTERIOR SUPPORT STRAP: Hold your games in place with the elastic strap designed to prevent your board and card games from shifting around during travel.