This was the first time that I used Injinji sock now they are my go to socks. I used them on many hot runs and two marathon this year and not one blister. I normally struggle with blisters on hot run and my feet are in rough shape after a marathon. With Injinji sock I have yet to get a blister. They do take me a bit of extra time to put on but well worth it. Going forward I don’t plan to use anything but Injinji socks for marathons