This is what the industry calls a quarter crew, precisely because they are longer than an ankle sock but shorter than a crew sock. Ours measure about 4" from the heel cap to the top of the leg ribbing. Comfortable fits a women's shoe size 6 -10. One size.
A lighter weight sock. Something about this open tuck pattern that replicates a hand knit stitch feels soooooo soft and cuddly. I would wear these with a little moccasin or mule so the pattern work would be visible