These are the ones the big boys use. Large enough to carry a 50-quart ice chest, their inside dimensions are 25 inches wide, 15 inches deep and 17 inches tall. They are made from heavy 32 oz. canvas and the leather is the best – 11 oz. Herman Oak latigo and harness.  A 6-foot buck strap and two top straps are standard.  With these bags you’ll put more on his sides and less on his back; and he will like you a lot for that!