Folding kayak : sailing kayak
PACIFIC Klepper

The Pacific Sail is a driving sail which can only be used for abaft winds (from behind).

The sail area is about 1,5 square meters and you only need a wind strength of about 2 to be quite fast. Much faster than paddling. It can be mounted in 10 minutes. Once fastened at the boat it can easily be hauled aboard from the side and put up again quickly.
The sail is available in white or red-black, you also get an adapter for coaming as well as sheets. Contrary to the driving sail "Freewind" you do NOT need a paddle-half to form the mast.