I am a smaller man with a smaller foot size - size 7. When I buy "male" socks the heel usually hits my Achilles tendon and I usually have to go to a boys sizes, to find the right fit. Socks were supposed to be unisex anyway, and I appreciated them. They are very comfortable and thick. I wear Galiva socks most days, which are incredibly comfortable. Your no show socks are terrible. I assumed Galiva would advertise these as show socks.