Microscopic heel - won't stay up (size 7.5)

I have returned these for refund immediately after receiving them and trying on one pair. The heels of these socks are microscopic. They don't come halfway up my heel and won't stay on when worn with shoes. I tried them with my actual boat shoes, and the thick welt at the top edge of the heel gets very uncomfortable because it's located on the most prominent part of the heel, where it presses into the shoe most. These socks have a few pros (hence three stars and not less): - The colors of these socks are nice and true to website photos - The material is really neat, and the silicone grippers in the heel look really promising - Manufacturing quality is great, I think they would last many washes I really wanted to keep these socks, they are awesome in all regards but one -- but that one sadly is a deal-breaker.

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