These look smaller than they are because they really stretch. On the other hand, if you make them wide enough not to stretch, you get a thicker wrister. The yarn I used is called "carrot."
Leaving a long tail (for sewing up part of the side later), cast on 24 (or multiple of 3)
*k2p1* across
repeat to desired length
This creates a pattern in columns: one that always looks K, one that alternates kp, and one (if you look-it gets hidden) that’s all purl.
Cast off in pattern at desired length: note, to keep this stretchy pattern when casting off, I added a stitch into the cast-off after every three stitches. Just yarn over and knit that yarn over through your stitch (you should only have one stitch on the needle after each knit or purl/cast off.
Sew using a tapestry needle with your yarn tails: from top for two inches. Leave 2 1/2 inch opening for the thumb. Sew bottom. (3 inches—in my pattern—but it depends how long you make yours). Adjust these based on hand size.