Sir Safety System Polytech multifunctional jacket. 290 g/m2, 75% cotton, 24% polyester and 1% antistatic fiber. Velcro collar for adequate neck protection. Zipper closure with metal snaps. Two Velcro bottom pockets and two Velcro chest pockets. Elastic cuffs. High-visibility stripes on the chest. Buttoned shoulder seams. The jacket should be worn with waistband trousers or bib trousers. The Polytech New Generation series is made of multifunctional, antistatic material that is resistant to heat, flash fires, and chemicals. The products are practical, comfortable, durable, and breathable.