nice little add on bag!!!
I recently ran a 100 miler and was concerned that I wasn't able to put enough of my necessities in my endurance pack (food, powder nutrition, sunscreen). I was looking for a larger pack but realized the next size up would be too big. I happened to stumble across the 'add on bag' and had to have it. I've only used it once since receiving it and it's perfect. It was easy to 'install' once I figured out what I was doing. I have used a chip clip to hold the opening at the top together but I think velcro will solve that. If you're on the fence, get it!!!