chrome is definitely the most comfortable bag i've ever worn. i tried the messenger style backpacks but they just weren't comfortable. timbuk2 is a good bag but not great. after awhile of riding it got really uncomfortable. also, after a lot of stress is put on the strap retainer it tends to slip. i had to use duck tape to make sure it'd stay tight. the chrome metropolis is so comfortable i cant beleive it. ra ra ra