Get explosive leg drive and stride frequency with the SKLZ® SpeedSac, a weighted training sled designed for hard-core athletes. The variable weight ranges safely strengthen lower-body muscle groups by providing options for increased resistance training, and the adjustable leash length is designed to accommodate athletes of any size.
- Improve 40-yard dash times, overall speed, and explosiveness
- Variable weight ranges strengthen lower-body muscle groups
- Adjustable leash length to accommodate athletes of any size
- Includes 3 durable weight bags that can be filled with up to 10 lbs of sand (30 lbs total); sand not included