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SKLZ Speed Sac - Variable Resistance Training

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SKLZ Speed Sac - Variable Resistance Training

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  • Free UK delivery

This is a great training aid from SKLZ. It is designed to produce variable resistance while you run to increase fitness and leg strength.


  • Includes 3 durable weight bags that can be filled with up to 10lbs. of sand (30 lbs. total)
  • Quickly improve your 50-metre dash time and overall speed and explosiveness
  • Safely strengthen lower-body muscle groups with multiple weight options
  • Adjustable leash length to accommodate athletes of any size
  • Adjust weight options for variable weight resistance

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