This is the Rob Allen Crayfish Bag Ultra Low Profile Game Bag - 3 Sizes Available Features: Ultra low profile Contours to the diver Canvas backed to protect diver Shuttle approx. 15 x 8" Standard approx. 15" x 16" Large approx. 15" x 22" Worn snugly around the diver, the ultra low profile crayfish bag contours to the diver, providing minimal drag and leaving both hands free. Canvas backed to protect diver. Available in three sizes.