Within the first month, i would have given them a definite 4. there was no adhesion left, all dried up. I own multiple styles and colors and in some, I have purchased multiple backup pairs so I am never without them. I was so bummed when I misplaced my brand new AirPods case. Otherwise perfectly comfortable, but this pair are disappointing. The exterior material says like new for several months and the inside stays fluffy and warm. I started out with Windows 7 and they worked fine, upgraded to Windows 10 along the way and they still work great. I loved how these shoes fit, the arch support was amazing but unfortunately, they wore down really fast. Ive even been to the Croc Shop in Vegas! I installed inside my pantry and had extra room after putting all my spices on it!