I only wore these for one season. They didn't fit my feet well, so I only wore them about 10 times. There is noticeable blackening overall. The opening is wide with Velcro, so they were easy to take on and off. I have a cat, so please refrain from purchasing if you have animal allergies. Shipping will be via the cheapest method. I am conducting transactions with no claims and no returns. Please comment if you have any concerns.