Iso-area chevron corrugation — 3D anaglyph of close-up
This is a variant of my chevron corrugation in which every other row of chevrons is reversed, i.e. pointing down instead of up. This makes the corrugation iso-area, i.e. both sides look the same. It also removes the tension which causes the basic version to curl: this variant can be spread as narrow or as wide you like without curling.