For sale is a Topeak MidLoader Frame bag, capacity is 4.5litres and colour is black. It's been used a fair few times, but looked after so in really good overall condition. Dual side entry zips. Note that the velcro straps are not adjustable, so you can't move them to different places on the frame (if you know what I mean).
PM me if interested, can send a picture and dimensions if required.
Asking £25 posted please.