These are not made for vehicle use. They need patching on every use. The zippers will break. They may damage your bike as they come apart (have scratches in the frame of my 5K road bike from the zipper breaking and banging against the bike after hours of driving). I went through 4 bags and they are now all in the garbage. When I bought them they were the coolest looking bags around - I would have been the biggest advocate in the van-life community as we all were looking for ways to protect our bikes. Now at every event they all want to know what happened to my cool looking bike bags.
We transported our bikes over 3,000 miles last year in all kinds of weather, rain, snow sleet, everything. The covers worked very well! I remember coming out of a storm in Colorado and there was ice covering both VeloSocks. It had all kinds of road grime as well but it melted off and when we took the bikes out they looked great. We use a Thule Helium rack, which is not listed, but the arms fit over the covered tires just great.
There was some wear through one of the cases from a pedal so, next time, I'll take them off for the long trip. All in all, a great product!
High quality. Fit perfectly on the bike. Perfect protection on a car bike rack, certainly in case of bad weather of with a few bikes on the rack. Easy to place after learning it. A must have for every biker.