Men Casual Leather Canvas Shoulder Bookbag Hiking Satchel Messenger Handbag Bag (Large, Dark Grey) Canvas Imported Thicker canvas material. Medium: 12 5/8 L, 4 3/4 W, 11 H; Large: 14 1/4 L, 4 3/4 W, 11 H; X-large: 15 3/4 L, 4 3/4 W, 13 3/8 H Genuine Leather. Brass hardware.