Product Review

Made for serious athletes, with serious drive, the SKLZ Speedsac Variable-Weight Sprint Trainer will help you achieve your athletic goals. Adjust your weight training resistance with three, 10lb. weight sacs, so you can train according to your needs. Increase resistance overtime as your build more muscle. The comfortable and secure weight belt won’t slip as you improve the angle and speed of your sprint. With an adjustable leash, it will accommodate athletes of any size. Use the SKLZ Speedsac during linear, lateral, base stance, and split stance drills. Remove the weighted bags and use as soft weights for lunges, squats, or additional hamstring and quadriceps strengthening exercises. This weighted sled allows you to improve endurance, explosive power, and overall technique, while simultaneously building lower body and core strength.