Gütermann Extra is ideal for heavily stressed seams and rugged repair work. This versatile thread is elastic and soft, yet exceptionally strong and can withstand upholstery usage. A great solution for seams on items such as tents, awnings and lawn furniture. Grey spool colour. TKt No. 40, Tex: 75, Dtex: 750, 2-ply. Suggested needle size: US 8/10 (60-70).