Mandala Crafts Tex 70 Bonded Nylon Thread for Sewing - 1500 YDs T70 Heavy Duty Black Nylon Thread Size 69 210 D Upholstery Thread for Leather Jeans Weaving
EZ-Xtend Serabond Bonded 92 Polyester Thread - UV Resistant and Heavy Duty Thread Sewing - Extra Strong Upholstery Thread - Can Be Used On Home Sewing Machines (White 8 oz Spool)
Coats Extra Strong Nylon Upholstery Thread - YouTube