Review on 📱 Gear Beast Running Backpack: Lightweight Vest & Phone Holder for Jogging, Hiking, and Cycling - Black, Compatible with Most Smartphones by Jeff Hill

I haven't used it for training yet. Mine didn't come with a manual, so finding the perfect aide that feels best to run will be trial and error. It would be nice to have a starting point as to how the backpack should be positioned as a good starting point. So far I've worn it around the house with no problems, but I can't imagine it won't leave a rash on my skin (armpits/chest) after running a few miles in it, but we'll see. The box says to go to gearbeast.com for warranty and care information, but I couldn't find the item there even after searching. :-(