Coats and Clark's 12wt Outdoor Living Thread is a durable and versatile polyester thread perfect for sewing and repairing all types of sturdy fabrics and materials. From indoor and outdoor upholstery and furniture to umbrellas and sports gear, this thread can withstand the harshest weather conditions, including UV rays and moisture. Choose from 16 vibrant colors, each containing 200 yards per spool. Use a machine needle size 16 or 18, or a hand needle size 1, 2, 3, 4, or 5 for best results.