Soak up the sun in the Tommy Bahama Coastline Stripe High Neck Romper Cover Up in Mare Navy. The Coastline Stripe High Neck Romper Cover Up by Tommy Bahama is made of 85% Recycled Nylon and 15% Spandex. The Coastline Stripe High Neck Romper Cover Up features a high neckline, built in shorts, and string details. For best results, handwash your Tommy Bahama swimwear.