I'm preparing for a marathon. I have tried Drymaxx, Balega, and these Thorlo socks. So far the Thorlo are my favorite, then Balega, and then the Drymaxx. The drymaxx are very tight and they squeezed my toes together, this caused my toes to hurt. I have not had any blisters yet with Thorlo and I did a 20 mile run in the rain last Sunday, so I take that as a good sign.