They are very solid and mounted securely on my car. Husband?s review. 5 in boots. Just spend the extra buck or two for a nicer one. She lives out of her bag. Without the traffic! You need to buy these your feet will thank you for it. I bought these a half size bigger than I needed because I needed to be able to slip them on quickly with no fussing around. They would probably be alright for a kayak or ski rack. My first thought was that they were kind of meh, when it came to how comfortable they were to stand on in front of the sinks and getting in and out of the shower, nothing impressive really on stone floors, but whatever the color was great at least.