Amazon.com: Selric Tex 135 Polyester Thread for Sewing 730Yards #138 T135 420D UV Resistant High Strength Upholstery Thread for Leather, Outdoor Market, Drapery,etc (Coffee)
Amazon.com: TEX 270 Poly Sewing Thread, Black 16oz, Heavy Weight Thread typically Used for Sewing Heavy-Duty Leather, Upholstery Fabric, Canvas, and auto seat & interiors. Free with One Piece 5" Seam Ripper.
Different Types of Packages Used in Sewing Thread Manufacturing