This enhanced polyester multi-filament thread is specially designed for heavy duty sewing on thicker and stiffer materials, such as leather or upholstery fabric. Available in 3 different weights (60wt, 40wt, 30wt), it can be used across a wide range of projects, such as furniture construction or bags and accessories. Spool tops edges are colour-coded to make it easy to identify the thread weight on the display.