£5.00 GBP £5.99 GBP
If you want to mount our lights like a running head lamp, you will need one of these. You can strap the smaller batteries to the back of the strap, or run the cable down your shirt so the weight of the battery can be in your pack or pockets. This is a great idea for winter when cold temperatures affect battery life.
If you want something more comfortable and supportive have a look at the padded version of this idea.