Lousy Sizing

I have a few pairs of women's Thorlo, cushioned, no show tennis socks which I bought at least 10 years ago. They are in great shape, not worn at all, and I wash them in hot water and bleach. Made in USA. Thought I would buy a few more pairs because other brands I own don't compare to my old Thorlos. I discovered in my local store that these socks are called "unisex" and the sizing has changed. The smallest the store had was a "unisex" pair in "medium" for womens' shoe size 6 1/2 to 10. That is one heck of a size spread. The socks looked much larger than those I bought years ago. They also looked a touch thinner or perhaps not as dense a material. Since I am a size 6 1/2 shoe, I decided not to buy these. Instead, I tried on a friend's pair of this new size( she wears a size 8 1/2 shoe)and sure enough they were much too big and bunched in my tennis shoes. My old pairs fit like a glove from the beginning. I then went to Amazon in the hopes of finding a size small (4 to 6 shoe???) but apparently, now that the socks are unisex, medium is the smallest available. What a crock to advertise these socks as fitting a size 6 1/2 women's foot. If you are a woman with larger feet, go for it. Otherwise, you will be disappointed.