I purchased the large Chrome bag, Metropolos, it was too big. I am 5' 4" and small framed and it hung off me. It is great for hauling groceries (It holds 3-4 bags full including a gallon of milk) but it is bulky and cumbersome when it isn't full. I had reload make me a Civilian and it is perfect. It is comfortable and I use it for work and back. I carry a change of clothes and as a teacher I have loads of papers to grade and books too. Somedays I fill it pretty tight. I think they have one size larger that falls between Chrome's Metro and Reload's Civilian. Reload was great to work with and I designed my own bag choosing colors, pockets, and my own artwork. It has been bomb proof, I toss it around and after a year it looks brand new. I have more people ask me where I got it. Check them out at www.reloadbags.com also www.fixedgeargallery.com just reviewed ten bags and www.messengers.org is a bike messenger website and on the second page under other resources they list links and comments on all the mfg. it was a help for me when I was looking.