Spacesaver wheel cover - any recommendations?

[Gogo]

I have bought a spacesaver wheel, jack and brace for my Zed. I would now like a storage bag. Does anyone have any experience of these: http://www.ebay.co.uk/itm/SPACE-SAV..._tyres_Rims_Car_Wheels_ET&hash=item20ea022d0d?

Or any alternatve suggestions?