First, the backstory:
My feet sweat... a LOT. Wet feet are more prone to blistering and get cold easier in winter. I've tried many different socks, most of which claim to have "wicking" fibers to help keep feet dry: Thorlo, WigWam Ultimax, Injinji, Teko, Smart Wool, Wright double layer socks, you name it. My feet never felt any drier while I was running - the socks just seemed to dry faster after my feet came out of my shoes and my socks came off my feet. So, I was a little reluctant to plunk down more money to try yet another brand of sock that claimed to keep my feet dry, but read some independent reviews that convinced me to give Drymax socks a try (they also offer a full money back guarantee if you don't like 'em).
Drymax socks are made with a dual layer system that interweaves two different types of fibers: water repelling fibers are on the inside of the sock next to your skin, fibers that attract moisture are on the outside of the sock so that sweat and water are pulled away from your skin. My Drymax socks also fit very close to my foot so that I don't have any creases or bunched up parts of sock when I put my shoes on. I also appreciate the flat seams across the toes, which is an area where I tend to get blisters from some of my other socks. A nice snug (not tight) sock that actually fits properly!
I started running in Drymax Trail socks this spring and have had hot spots only twice in the 6 months since. The first time was during an early spring ultra marathon where I was wearing Gortex shoes, which can also prevent sweat from evaporating (the same properties that keep water out of shoes also keep it in). The second was just a few weeks ago when I began getting a hot spot on the medial side of the ball of my right foot - still not sure why as it hasn't happened since. I just got a pair of Lite Trail Running socks which I haven't tried yet, but they may come in handy at my 50 miler in two weeks if my feet start to swell a little during the race and I don't want to change into larger shoes. I also got a pair of the Cold Weather Running socks on sale at Zombie Runner that I plan on trying in a few months.
Great fit with no bunching or creasing.
Flat toe seams.
My feet stay drier.
Very comfortable sock - maybe because my feet stay drier?
Seem very durable so far.
No blisters - just hot spots twice in the last 6 months.
The not so great:
Spendy (but worth it).
Right now, all of my trail running is happening in Drymax Socks!