Patagonia Reversible Seaglass Bay Swimsuit Top in New Navy The Patagonia® Reversible Seaglass Bay Swim Top provides a chic beach look. Reversible fabric, strappy back design and halter cut deliver an unforgettable appearance. Sporting soft, durable material, you’ll swim comfortably with the Patagonia® Reversible Seaglass Bay Swim Top. Size S available. NWT Halter, Reversible, Strappy back, Navy, Patagonia, Seaglass