Brooks Cambium C17 saddle. Used condition: see photos as they constitute the description. This version had a metal frame. It's up for sale as it's not been used for several years. It resurfaced during our house move 6 months ago and is now part of the ongoing "do you really need so many spare bike parts" big clear-out. No breaking in period required (unlike leather): these are comfy from the off. Riding with a Cambium is like having a suspension seat post: it's brilliant for gravel and washboard. Saddle slots accommodate traditional saddle bags like Carridice.