I feel like the best endorsement of these socks I can give is I wore them in the Great North Run in monsoon weather with Vaporflys and I didn't once have to worry about my feet. If that isn't going to give you blisters nothing will. Quality is excellent. People complaining they're expensive are overlooking the fact you'll probably have to buy 5 pairs of cheap ones in the time these will last. Sums also have a great scheme where you can return old socks in exchange for a code for a new pair so the value works out nicely especially when you take out a subscription. Coupled with the fact the customer service is great and they look amazing it's a big yes from me and Sums are the Soar of the running socks game. Thank you Ed.