100% Polyester.
"Leto" Embroidery Threads are made from 100% polyester and have a soft cotton-like feel. The range consists of 40 shades of 10 metres, wound onto thick high-quality brown card bobbins.

Leto is a thick quilting thread, perfect for chunky quilting stitches and counching and their unique and attractive packaging make them ideal gifts for your quilting friends.