Gütermann Natural Cotton is a 50 Weight sewing thread made of 100% cotton. It is versatile and gives all seams a natural character. Uses: For lock and step seams, overlock and safety seams, underwear buttonholes and for sewing on buttons, ornamental stitches and decorative seams Soft and supple, Tear and abrasion resistant. Elastic and extendible, light-resistant and colour-fast