The couple of days ago. I search for information on the SKLZ SpeedSac – Variable Weight Sprint Trainer, so i would like to describe here.
Speed Sac Sprint Trainer…Outrun The Competition Is your lack of speed preventing you from becoming a gamebreaker If so this training aid can help. Its use of variable weight strengthens your lower half which enables you to explode from a set position. On the court on the field. It doesn’t matter. For once you’ll be ahead of the pack SKLZ Speed Sac Sprint Trainer features Quickly …. Read more or Check Price
Customer Reviews Purchased this product
This is by far the best. It is very resistant and also quite Rome to put extra weight by stephanie hierholzer