My original top covers lasted a very long time, even with daily use. They will wear out eventually, and that's where the replacement covers come in. Your Tread Labs shoe inserts will be absolutely like new after replacing top covers. Replacement top covers make the shoe inserts more affordable. Way to go Tread Labs!
Order two and got them on time. Can't complain.
Put on top replacement covers then hiked 70 miles in the Italian Dolomites. Feet very comfortable with no issues
The ability to recover the product with a new surface vs buying a whole new product is very nice.
Tread Labs is probably one of the best companies I have ever dealt with, period. Their product and their employees are awesome. These covers were exactly what I needed and fit right onto my existing TL inserts.