Crochet / Beginner
Back Loop Rib
Single crochet worked through the back loop only, which forms stretchy ridges that resemble knit ribbing.

An illustration of the texture, showing 4" of fabric at your gauge. It isn't a photo of real yarn.
Swatch first. These numbers are only right at your gauge, and the starting values above are typical figures rather than yours. Work a 4" swatch, measure it, and enter what you get.