Exceptionally versatile, hardwearing and warm, the Thorium AR Jacket performs as a cold weather midlayer and as a standalone. The jacket’s design combines an ergonomic fit, premium craftsmanship and carefully selected fabrics. Lofty 750 fill European grey goose down delivers exceptional warmth for little weight, is durably resilient, and packs easily. The outer is soft, durable Arato™ 40 nylon. This lightweight material withstands abrasion, packs compactly and has a DWR finish to repel moisture.