Prepared for winter conditions, this flex safety jacket features a waterproof and breathable shell designed to keep users warm, safe, and dry in any weather.The shell is constructed from Mechanical Tough Flex 100% polyester with a PU membrane, providing 5000/5000 MVP/24hr^2 waterproof and breathable protection alongside a durable water-repellent finish. The interior lining consists of 100% polyester quilted to 6 oz. 100% polyester insulation.