NWT - Aviator Nation Rainbow Sweatshirt. PRODUCT DESCRIPTION (from Aviator Nation) The most comfortable sweatshirt you'll ever own. Our single needle stitch work gives each garment a unique, one of a kind effect. All of our products go through an intense breaking-down process that gives them a vintage feel you'll love because it's broken in from day one of wearing it. You're going to live in this sweatshirt. - Sweatshirts are UNISEX sizing - Hand sewn in our own factory in the heart of Los Angeles - Tri-Blend Fabric: 50% polyester, 38% cotton, 12% rayon - Machine wash cold with like colors. Hang or tumble dry on low