I've only used this a couple of times - I bought a Bikepack saddle bag and then the Wildcat set up so I no longer need this.
same as this and I also have a spare mounting kit I'll throw in

http://www.wiggle.co.uk/ortlieb-classic ... addle-bag/

£25 posted

I have one of these too. Mines not for sale though!

A very good bit of kit, I still use mine now and again despite now having a wildcat saddle device.

Good for around 4 litres capacity and very water proof.