Any body had any experience of these, was thinking of getting one from SOS. They ship all their stuff internationally. (Finnish site so use google translate if you want to browse.)
http://www.scandinavianoutdoorstore.com/teltat-ja-majoittuminen/laavut-ja-louteet/rankinen-vihe-1/
http://www.scandinavianoutdoorstore.com/teltat-ja-majoittuminen/laavut-ja-louteet/rankinen-vihe-1/