Crafted from NSF's signature loopback French terry – known as the perfect sweatshirt fabric – the Luz Bomber Jacket blends the structured look of a bomber with the casual comfort of your favorite sweatshirt. Crafted from NSF's signature loopback French terry – known as the perfect sweatshirt fabric – the Luz Bomber Jacket blends the structured look of a bomber with the casual comfort of your favorite sweatshirt. LA-based brand NSF is inspired by a California attitude and an understated cool, relaxed sensibility that expresses a confident, independent spirit.