So bummed.  First wear I would have given them a five star review...I shared w/ our other bakery girls as we all wear Dansko clogs and it's nice to have no show socks when we wear them w/ shorts or crops.  After the first use, one or both socks would slide off the heel, making them super annoying.  Other than that the color, size, material were great.  But the slipping takes all the positives away...alas.  Our search will continue.  I'm sure smart wool will have something...