If you have ANY sort of calf muscle, STAY AWAY from these socks! I have large calf muscles for a woman, but I'm on my feet lifting heavy back-lights (back windshields for cars) for 8 1/2 hours a day. The cushioning on the feet is wonderful! It's like little clouds of heaven on your feet....but the rest of the sock is like a tourniquet of death! I tried pulling them all the way up (At 5'4" the go up to my knees!) but that just left my entire leg deprived of blood flow! So now I fold them over my work boots, which looks ridiculous but hey, my shoes don't come untied anymore! I'll keep using them because I love the extra padding on the soles and just hope I can wear out the neck of the sock enough so I can pull them up without amputating both my legs.