XLR8 Power Sack & Resistor Belt

Price includes NZ GST $ 169.00
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Perfect set for explosive speed and anaerobic conditioning.

  • Attach the Power Sack to the Resistor Belt for tow sprinting or strongman walks.
  • The versatile Resistor Belt can be used without the Power Sack for resist and release contrast sprint drills.
  • Caution: Regular use on concrete is not recomended as the base of the Power Sack will wear quickly due to friction on rough surfaces.


  • 1 x Power Sack.
  • 1 x Connecting Lead.
  • 1 x Speed Resistor Belt.

Hints & Tips

Then latest innovation in functional training!

Multiple applications include:

  • Resisted Sprinting.
  • Contrast Training.
  • Strongman Training.
  • Cross Training.
  • Anaerobic Conditioning.
  • Core Training.
  • Transport & Storage of your training kit.


Enjoy all the advantages of metal sled tow training with none of the disadvantages.

The lightweight, safe flexible materials package flat to take up very little space.

Easily transport and set up multiple Power Sacks for group training, try doing that with metal sleds.


Simply fill the sack with weight to create an indoor, outdoor any surface training tool.

Load with a Strength Bag, sand bag, weight plate or medicine ball.

Even better you can use the sack as a bag! Fill the sack with your functional training equipment and turn up to training ready to work.

Safe on any surface:

The safe slide design of the Power Sack suits any surface.

Use on everything from artificial turf, wooden gym floors, gym carpet, asphalt, grass and sand.

The flexible yet hard wearing materials and shape will mould to the terrain and slide over undulations or objects on the ground. 

Constructed of heavy duty bonded PVC upper and easy slide rubber matt base held together with rot proof stitching.

All weather:

Take your Power Sack anywhere and in any weather conditions without having to worry about expensive weight plates or metals sleds rusting. No need to cancel training when it rains!
Use as a flexi cord drills anchor

Convert your Power Sack into an anchor point for loaded agility and plyometric and power running flexicord drills.

Simply weight the bag with  20-25kg and attach the cord to the heavy duty carabineers.


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