Tackle twill, or applique, involves the sewing down of material, usually a nylon twill, to clothing. Originally, the twill was laid down and sewn with a sewing machine one letter at a time and was necessarily simple to do.

Tackle twill is the application of custom-cut twill lettering onto a garment. Any shape, letter, or design can be custom cut from a polyester twill material and sewn onto almost any garment for an extremely finished look.