Gravel Wool SockMade with the same modern, Italian knitting machinery as our Aero Socks, we introduce the SILCA Gravel Wool Sock. Using merino wool yarn, the toe box has extra cushion (perfect for wicking water and sweat) without the thickness in the heel that can alter the fit of your shoes! Perfect sock option for your wet rides: gravel, MTB, or off road adventures. The Gravel Wool Sock has a lot of compression, so if you desire a more relaxed fit you may consider