I selected these socks because of the mesh.  My feet have always sweated and even in winter, I have problems because my feet are too cold without socks but to hot with them.  My last buy of socks lasted about 6 months as I wore holes in the toes, heals, and other areas.  I did not know about the lifetime warranty on the socks until I was taking off the wrapper.  Wow - I can keep getting these socks renewed for the next 40 years - that is, if they develop holes.  So far, they work wonderfully keeping the part of my feet that need warming warm and the other part cool.

Yes, I recommend these socks for anyone!  Glad to have found the brand!