Very impressed by this sock. Very comfortable, not too bulky, not too thin. Looks durable but time will tell. Im 61 in height and wear a size 12 shoe. Im in law enforcement and primarily wear a tactical type boot. I wear these socks for work and wish they were about a 1/2 longer because its just short of getting to a point above my calf where it won't fall down some during a day of work. For the most part it stays up despite being a little short yet it doesnt tighten up on my toes as some othe brands have done. Ill be getting more of these if they last. So far its only been 2 weeks and Im satisfied.