These socks are nice and thick and comfortable. The toe is smooth and comfortable and the tops stay up without being too tight. I am a woman who wears a size 11 which is about a size 9 1/2 in mens shoes. These socks are just right for me so I cannot imagine them stretching out to fit a size 12 1/2 in mens size. Keep this in mind when ordering.
If you need further help or information please visit our Online Help Center