I got the pink ULP for my 2 weeks of touring in Wisconsin in July. I regularly carry a Cliff bar, 2 tubes, tire iron, my inhaler, cell phone, ID, small camera, small container of Accelerade, bag rain cover inside and rain gear (jacket and pants) on the outside. Saturday, for my ride down Vail pass I stuffed arm and leg warmers in it.

My bike is 48 cm with 650c wheels. My seatpost has 3" showing and I have 1.5" of space showing with the seatpost attachment on.

In the past, when I needed lots of gear I carried a backpack. Now I use this bag and 2 water bottles.