The Luxe Rib Long-Sleeve Tee was such a fan-favorite, weve added a long sleeve style into the lineup. Made with our super-soft, fine-ribbed Supima cotton with a touch of stretch, it has a slim fit, with just a center-back seam. Its the perfect layering piece or new favorite top. Grown in the United States, Supima cotton is distinguished by its extra-long fiber length, which gives it more durability and a softer hand feel. Supima is able to authenticate the source of its cotton across the entire supply chain, from the fiber and yarn to the fabric and finished product.