SKLZ Speed Sac

The SKLZ SpeedSac is a great training tool that builds speed, acceleration, and strength. The SpeedSac includes three individual weight bags that can be filled with up to 10 lbs of sand or brick pavers. Remove a bag or two to adjust the amount of resistance. You can also use the handles on the bags to perform various upper and lower body exercises such as lunges or front raises. The adjustable waistband accommodates any size to fit men, women, boys, and girls. The harness that connects the waistband to the SpeedSac is adjustable in length for versatile training. The sack that holds the weights is fortified with a heavy-duty rubber cover on both sides and is built to glide easily on grass, turf, or a gym floor. The rubber cover is pliable and won’t scuff your gym floor. More versatile and portable than metal speed sleds, this SKLZ speed trainer allows you to strengthen your lower body muscles by resistance training similar to metal pull sleds. Used by top athletes - train like a Pro with this SKLZ speed trainer!