Over Engineered to support at least 75 pounds of weight! Fully loaded you would be hard pressed to stuff more than 40 pounds in it! - At 20x15x12.5 inches you are getting 3,750 cubic inches of storage. A combined Length/Width/Height of 46.5 means you can squish this into the maximum 45 inches of carry-on luggage per airline standards. - First-ever buckle straps above both side beverage pockets to secure game mats or long tubes. - five bottom-of-the-bag rubberized feet to protect your games and playing surface with anti-slip gripping. - Fully adjustable Velcro insert for the main storage compartment so you can secure a partially full bag or take pressure off games below the insert - Stury metal zippers throughout to ensure your bag won't pop and your games stay where you put them. Reinforced Top Handle for "tote mode" carrying and to get the bag in/out of tight spaces easily. - Utility external zipper pocket with easily accessible internal pockets and zipper storage to hold up to a 15-inch laptop or all your DND/dice/cards/personal items for quick access. - Padded Strap Grip with Velcro Closure for easy "duffle mode" for easiest one-handed transportation. - Upper top pocket above the main compartment with extra padding and internal netting to store one more medium game, several smaller games, or up to a 15-inch laptop. Reinforced, adjustable and padded shoulder straps for comfortable "backpack mode". Includes front straps between the shoulder straps to keep the backpack even more comfortable for longer hauls by connecting the two of them across your chest. - Loop at the top where the shoulder straps attach for hanging your bag up on a hook when not in use. - Back "envelope style" pocket that functions as more cushioning for backpack mode. This doubles as a sleeve to slide over your carry-on or suitcase or cart for rolling the bag