Strong, 2-ply, core-spun 100% grey polyester thread has tested as strong as 3-ply thread. Can be used in both the needles and loopers in your serger or in your sewing machine. This premium Madeira Aerolock thread is colorfast so it holds its color after repeated washings.
Like all Madeira thread, each cone undergoes extensive quality testing to ensure you have the best sewing experience.