I wear cotton socks on my weekday rides which are are about 10 miles in length. The reason is that I do not have 7 pairs of cycling socks... I do wear cycling specific socks for my weekend rides/races or events. I think my Specialized shoes vent extremely well, because even on 95+ degree days with cotton socks, my feet/socks are bone dry after a ride while the rest of my body is dripping in sweat.