I put this on a spare tire on my 23ft wakeboard trailer. It's vertically mounted far enough back to be exposed to crosswinds, rather than mounted in the back of an SUV like other reviewers (where it would be very sheltered from freeway winds). My caravan is outside for a long time, always in the sun. I tow 2-3 times a week to the lake where I drive at 70 km/h on the highway. It was fully submerged in the lake each time it was carried. Now I have the cover for the whole season and it still does the job. It exceeded my expectations for the cost of the cover. I thought it would come loose on the freeway now. UPDATE: I've been using this case for 3 full years now and still have no problems. For the price, I can't beat this case.
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