Heavy bags are a training staple. Durability is a necessity. The UFC Standard Heavy Bag is no exception. This bag is designed to withstand long, daily intense training sessions. Made from super tough, ultra-durable PCV exterior and reinforced at every seam - you can rely on this bag for a long time. Strong enough for gym use, but economically priced for home use, look no further. This bag is what you need. Available in 70 lbs. or 100 lbs. You can order it filled or unfilled. The choice is yours.