I've had a lot of different cars and different covers over the years and this coverking satin stretch is by far the softest cover I've ever come across. It's made of satin and lycra with a crazy soft fleece lining, it's only for indoor use and keeping dust off. I'm neurotic with my car to be honest, it only goes out on nice days, comes home gets waterless washed and covered so the cover only goes on a perfectly clean car thus making it as safe as possible. My car would have a ton of dust on it if it just sat overnight without the cover due to the unfinished floors (really need to finish them) so a cover is a must if I want to maintain my sanity haha.
Plus it's a white VW with typical rock hard VW clear coat so I have that working in my favor too. Even the crazy sensitive gloss black plastic parts like the b-pillars and mirror caps which scratch if you look at them too long haven't shown any sign of swirls or scratches from the cover. Of all the covers I've had it's definitely the safest feeling one since it's pretty much microfiber like soft being fleece lined.