The soft and stretchy Siren Tank is a sleek, stylish and versatile layering piece for any day of the year. Our corespun fabric features soft merino wool fibers wrapped around a nylon core for added strength and durability, while retaining next-to-skin softness. The Siren Tank’s scoop neck and slim, flattering fit offer feminine style. Layer this tank over the Siren Bra and under any midlayer for enhanced breathability and comfort.