this is my second pair of top covers. they are very comfy - I think they are a good product. I needed to replace them after 6 months, though, as they 'lost their fluff'.
The shearling top covers we're a great addition to the insoles. I can swap running top layers with soft warm covers for inside my slippers!
These insoles help to keep your feet warm on those cold days make sure that you get a big enough size, order the bigger size if in doubt. I wish that they wore a little bit longer