Rasant 120 Thread is a Core-Spun Poly Cotton, in other words, it is a polyester core thread that is wrapped in cotton. It provides the strength and durability of polyester with the feel and sew-ability of cotton. 120 refers to the weight of the thread, this is as super-fine thread that is suitable for delicate fabrics, yet durable and strong due to the way it has been made (Core spun).

Polyester/Cotton

1000m