Soak up the sun in the Tommy Bahama Coastline Stripe Reversible Tank One Piece Swimsuit in Mare Navy. The Coastline Stripe Reversible Tank One Piece Swimsuit by Tommy Bahama is made of 85% Recycled Nylon and 15% Spandex. The Coastline Stripe Reversible Tank One Piece Swimsuit features a reversible design and a back tie. For best results, handwash your Tommy Bahama swimwear.