Polyester thread, 

• Finest quality high-tenacity spun polyester
• Sewability of cotton threads with the strength and economy of synthetics
• Available in over 500 colours
• Knotless construction
• Most popular general purpose sewing thread
• Ideal for single needle sewing, to serge and overlock 
• Meets or surpasses all civilian, government and military specifications
• Certified according to STANDARD 100 by OEKO-TEX®

Specifications:

• Tex: 27
• Put-up: 6000 m / 6565 yd
• Break: 1.2 kg / 2.7 lb (approximately)

Note there are many other colors, please contact us if you're looking for a specific color and we will get it added for you.  Minimum purchase is $150 of these threads (any color is fine just a minimum purchase of 10 spools required as they are special ordered)

Review this attached COLOR AVAILABILITY PDF and email us which colors you'd like.