Pat Guinnwrote a review of Castelli Rosso Corsa 6 Sock on October 7, 2016
Familiarity: I've used it several times
Fit: True to size
These are my favorite socks, they are very thin and breathable. I use them for everything from biking, running, hiking and even wear them at work. They don't have much cushioning, but that is another thing I like about them; they are low profile and keep my feet cool.