Every company should now be using PTFE feet glides. it goes and goes for days. I am a UPS driver and I use them bc of durability and they keep my feet dry. You can tell they are great quality, true to size, and comfortable. I am a 7 bit I have to order an 8 as they run a bit big. A little pricey for what they are. Nice sandal. Once the 3000lbs vehicule was on the dollies, I couldnt even move it. Its safe to say Ive heard at least 97% of the speakers on the market to date. Im truly happy with it that I have to keep it for me and Ill just get my daughter a T6 of her own since that was shes asking for.