Twill weave
A weave in which the crossings step along by one thread each row, giving fine diagonal ridges on the cloth.
Also: twill
In a twill, each weft thread passes over two or more warp threads and then under one or more, and the starting place shifts by one thread on the next row. The shifts line up to make a diagonal ridge that runs across the cloth. Twill is firmer and drapes better than plain weave, and it hides dirt well. In sarees it is less common than plain weave or satin, but it appears in some silk and cotton cloths and in the grounds of a few regional weaves. Denim and gabardine are well known twills elsewhere.