This is a video showing how different is the hydration waist belt ride between a Jurek Endure against a Stockghyll Force 2. You can see that Ultimate Direction had the right idea with non-elastic waist strap.
Visit my blog post http://literevsg.blogspot.sg/2014/06/running-gear-ultimate-direction-jurek.html for the full write-up.
Background music from http://www.freesfx.co.uk
