The PANTHER SERIES Uppercut Angle Bag is made of genuine leather and has double-stitched seams for added strength. It is a top professional boxing bag designed to withstand the punishment of today's top athletes. The bag has 6 heavy gauge D-ring hangers attached by double-layered leather and nylon webbed strapping, cross-stitched into the main material for added strength and durability. The heavy-duty zip keeps the top securely closed and is protected by an additional flange of material to keep the zip hidden. The base of the bag has a metal D-ring to attach a fixing or weight to reduce the bag from swinging during heavy workouts.