SKLZ Speed Sac
The SKLZ SpeedSac is a durable weight bag with three sandbags for demanding sprint & fast strength training. The resistance trainer is ideal for all indoor & outdoor areas (except tartan tracks). With the 3 individually fillable sandbags, the training intensity is ideally adjustable to the individual training level, the pull rope is adjustable for body size.
Please note: Sand filling not included.
- Material: nylon.
- The Speed Sac provides a more effective speed training.
- You will achieve high explosiveness and extreme acceleration speed if you train with this training aid.
- Tip for athletics training: When training with the Speed Sac, observe the "5% rule" with regard to
the filling weight! In order not to negatively influence the running technique and thus reduce the training effect, the training weight of the Speed Sac should not exceed 5% of your body weight.