I have a couple pair of these, and the quality is very good.
However, they are rather wide, and I had to sand them down in certain areas to fit them into my shoes. I typically wear a rather narrow last style shoe, but I am a standard D width in US sizing.
I also felt like the finish on the wood may have impeded absorption, so I sanded the finish off while I was at it.
How do you sand down the trees?