Specialist clothing is exposed to various factors that affect the life of a given product. For sewing this type of clothing we recommend LETO 60 threads by Ariadna. LETO threads are made of polyester silk with high tensile strength and resistance to dyes and chemical agents. LETO 60 threads are also used for sewing footwear and leather goods. Available in 5-spool reels. Recommended needle number: 90-100.