Can someone tell me which pack to get? Below are the options I'm considering. This is for city/school commuting purposes, and occasionally picking up some groceries etc.
http://www.chromebags.com/products/bags/show/25/
http://www.chromebags.com/products/bags/show/14/
http://www.rei.com/online/store/Prod...ory_rn=4500844
I've heard that single strap systems funk up your back. Is that true?