The Siren Cami Arena is sleek, stylish and ideal for everyday layering. Our 150gm corespun fabric uses merino wool fibers wrapped around a nylon core for added strength and durability, which retains next-to-skin softness. We've added a touch of LYCRA to provide just enough stretch to withstand holding shape throughout your day. Icebreaker's Arena sheep print humbly reminds us of our unique heritage, and the sheep that keep us cozy. The Siren's scoop neck and slim, flattering fit offer feminine style and is a key firstlayer to any outfit.