I got a full cover for my C172 from Bruce’s Custom Covers.
I know of someone using http://www.aeroprotect.de/en/default.php while parking his motorglider outside throughout the whole year in Germany. He previously had Jaxida’s…
Aerobache located in Corsica have a good reputation in France:
http://www.aerobache.com/index.php?language=fr&osCsid=214287aa0bc009ad9a34a593f6c7c72b
I used Aviation Covers in the USA and have been happy with the quality and ingenious fitting, but shipping costs might make them expensive in France:
http://www.aviationcovers.com/
Simon
Many thanks for your answers and suggestions.
Any view / opinion about using an engine cover ? Pros & cons ?
I am sceptical to a full cover like the one depicted by AfricanEagle. I suspect it might favourise the development of corrosion by keeping moisture trapped within. So unless you rush to dry the cover (and the airplane) after each rainfall, I think it is better to allow wind/air to dry the airframe. On the other hand it is absolute necessary to protect the windows, windshield and interior from damage from sunlight (and moonlight 
)
Aviathor wrote:
I am sceptical to a full cover like the one depicted by AfricanEagle. I suspect it might favourise the development of corrosion by keeping moisture trapped within.
I’d think rather the opposite is true. At least Jaxida and Clouddancer have breathable material and hold much moisture from precipitation off the plane. If you just use them at your home airfield, I personally would go towards the hail protected complete sleeves (wings, complete fuselage and empennage) and store them in my car when I go flying. For touring I’d just take engine plus canopy, since the other stuff takes up quite some space and useful load that isn’t always necessary.
The Bruce’s “lightweight reflective cover” is breathable and doesn’t hold water in. It is great. It keeps the cockpit relatively cool even in +35C Greece. The internal surface is soft and protects the windows (but obviously it must not touch the ground when handled).
I have found the products from sky4covers very good and long lasting.
I have no connection with them except as a happy customer.
I bought a cover for my Slingsby around 10 years ago from Cambrai. It is still as good as new, just a bit faded. The main thing is that it fits very well, no wrinkles or slack bits, so no rubbing.
Peter wrote:
Is it possible to maintain a tight fit over a range of “wetness” conditions?
I find my Cambrai outdoor cover to be a good tight fit whatever the weather
