This is a pretty beginner pattern.

Also, a great way to look like you’re wearing cosy hand knit socks without having to turn a heel!!

(For sizing: Try measuring around your calf and see how big it is around… do a small gauge swatch in 1X1 rib. Try casting on 10 stitches… work it for a few rows, and see how many stitches there are in 1”. Then times that by the number of inches your calf is around. Thats your cast on #!)