Norse Projects takes inspiration from classic, practical workwear to create this black Osa Light jacket. Made using windproof Pertex Quantum, it features a durable water-repellent finish to shed light rain and snow - keeping you protected from the elements. Pertex Quantum 50% Recycled Polyester, 50% Polyester, Thermore E codown Polyester Lining, Windproof, Water-Repellent, Raglan Sleeve, Chest Pocket. Norse Projects Osa Light Pertex Jacket Black Norse Projects Osa Light Pertex Jacket Black male X-Small Technical & Rain Jackets 100% Polyester adult.