Bests & Worsts Reviews from Amazon

Bought this based on the great reviews it got. The one thing I need it to do, which is to keep my laptop safe, the zip came loose after just 6 months (see attached first picture). It has been developing threadloose spots in some places, and that's fine, but the zipper thing, common! Update: Was going to change this review to a positive one since Timbuk2 has a lifetime guarantee on their bags. That was, until I contacted them and they tell me they they consider the zip coming loose normal wear and tear.