I've been doing a lot of research and I think I'm going to need two bags. I think i like the bailey works super pro in size small. I don't like the huge messenger bags because i don't take a ton of stuff when I bike to school or to the store. I like the bag to be in the 15 to 18 liter range.

Anyways, now i'm looking for a second bag that is much smaller that i can take on joy rides. Something to hold my phone, keys, wallet, a few snacks, possibly u- lock, maybe a tool. Maybe something in the 5 liter range? Does anyone know of a list of good bags based on volume? Like 2 liter range, then 5-10 liter range, the 10-20 liter, and then 20 and above? Or something like that? Or can you recommend a good small bag? The one i'm looking at is the Chrome Chekhov. So far that's he closest to what i'm looking for but i don't think i'm in love with the look and the shape. I like the Chrome Victor but it's a little too small. Help/ suggestions are appreciated. I was able to choose the bailey works super pro just based off of reading the forums, but didn't find much about these smaller utility bags.