Comments about M-Rock M-Rock Arches 675 Hybrid Backpack / Sling Bag - Black /Navy /Grey:
I haven't been a fan of the sling bags I've tried but this one looked interesting -- I've taken it on a 2-day photo workshop and used it as a back pack, it was very comfortable. Lots of customization possibilities, nice pockets, multiple points of access, kept everything dry in a downpour. Very pleased -- haven't used it as a sling bag yet, but that looks promising. My only gripe is that one of the zipper pulls broke before I even got it out of the house, and after one day of use the bungee cord on the base came unraveled. I knotted these up so they work, and they're not critical to the bag's useability, but it makes me little concerned about long-term durability.