LOVE my new FLITE XT Five socks! I had my first IronMan 140.6 triathlon coming up and had been stressing about what socks to wear. I'd been training in several different ones and sometimes get blisters, sometimes sore feet, etc. compression socks vs non, sleeves with ankle socks, what brand as I have several I switch between, including Swiftwick. I saw a Facebook at for the FLITE XT Five and ordered two pairs, but very close to the date we had to leave. They arrived the day before we left so I didn't have time to try them out beforehand. They say 'never anything new on race day', but I decided to chance it and wow am I so glad I did! I changed into my new, never worn socks for the run segment (26.2 miles), and about 5 miles in it started to POUR rain and continued for the next 5 hours. my feet were sopping wet for hours but aside from being wet were totally comfortable and zero blisters! I've worn them a couple times since are they're the most comfortable yet supportive socks I own.