Day trip panniers. I love my Arkel tailrider. It holds quite a few items, tools, camera, CD-player, food. For longer rides or rides where I need to haul more I use the Arkel T-22. They are the smallest Arkel makes yet they are more than adequate for my needs. They are extremely well constructed and have held up great. They are designed to use on the front, but I use them on the rear and they are solid.