Wave and Chevron Stitch
Design by Oombawka Design Crochet.
This afghan square comes with lots of photos showing how to crochet the wavy chevron stitch. The pattern also includes a stitch count, so you can basically crochet this up to any size that you need.
You will need a worsted weight yarn and a 5.5mm crochet hook.
See More From Oombawka Design Crochet.
Crochet Stitches
See the Crochet Stitch Directory
Chevron
See More Chevron Crochet Patterns.