Small Chrome backpack. Holds all my necessaries via commute and then some. I ride multiple bikes and do a bike-bus-bike commute, so a backpack is most sensible option.
I have a more substantial backpack with expanded living gear, but realistically, it would live in a trailer if I was to adapt it to bike only life + trailer.
Last edited by mconlonx; 10-28-14 at 06:35 AM.