Gütermann’s Extra Strong is a very sturdy sewing thread with a high tensile strength, particularly suitable for heavily-stressed seams in denim or other heavy or tightly woven fabrics, such as canvas or leather. This thread is made from 100% polyester, is washable up to 95°C and is suitable for tumble drying. Recommended needle size: NM 90-110. Available in various colours.

This set contains 6 spools of Gütermann’s Extra Strong sewing thread in commonly used basic colours, with each spool holding 100 metres of thread.