Nessi Byrd One Piece Bathing Suit. Size 10 The Nessi Byrd Girls Black and White Swimsuit is the perfect pop of fun to your little one's swimwear collection! This adorable lace up swimsuit for girls is made from a blend of soft and durable fabrics, such as polyamide and elastane – perfect for hot summer days at the beach. This lovely one piece swimsuit features an eyelet detail and lace up detail on the front for a unique look. The U cut back is designed with comfort in mind, perfect for a day of swimming and playing. Whether at the pool, beach, or simply playing in the garden.