The sleeves have a nice feel and grip so your thumb doesn't slip off. I can't even tell they are 3rd party and not OEM which is a huge plus. They are also very easy to put on. The only problem as you can see from the photos is that they don't have the guides in the cover like the second advertised image. My concern is that they might loosen and twist in the long run, but for now they fit and feel good. I'm glad I bought them.