A soft and stretchy women’s T-Shirt with an updated fit and fabric that makes it even more comfortable, the Siren long sleeve sweetheart is made with our core spun fabric, soft Merino wool fibers wrapped around a nylon core for added strength and durability, while retaining next-to-skin softness. Ideal for year-round use whether traveling, hiking, or relaxing after a big day outside, the Siren long sleeve sweetheart also features a flattering neckline and a fit that’s perfect for everyday comfort and layering.