What is this ribbon called?

[Dilbertian]

I want to order some.

I think this one may be polyester or poly cotton mix, but I've also got some in 100% cotton.

Id try searching for herringbone ribbon.

I looked up Petersham ribbon but that seemed to have the ribs going across the width of the ribbon instead.

webbing ribbon

It's a type of grosgrain but adding herringbone in the search terms will help narrow it down.

Petersham is stiff, mine is very soft.

Grosgrain is also stiffer than mine, and not as strong.

Thank you! It's herringbone twill.