The scarf is worked in Tunisian Chevron Lace stitch pattern. It is basically a Tunisian Simple Stitch with increases and decreases to create the chevron/ripple stitch pattern.

The sample in the picture has been worked in a brushed acrylic yarn on a much larger hook than the size suggested on the ball band to make the fabric more open and give the scarf some drape.

The scarf can be made in any yarn. If you are using a finer yarn you will probably need more stitches. The pattern is an 8 stitch repeat.

The scarf can also be made any length depending on how much yarn you have. The sample in the picture took all of one ball of the stated yarn.

I have now filmed a demonstration of how to work the ripple stitch pattern. You can find it here