The Lilly Pulitzer UPF 50+ Sophie Dress is a fan fave for its classic styling. The straight fit, gold button details, and flattering boat neckline make this a dress we turn to for just about everything under the sun. UPF 50+, straight fit dress with boat neckline and gold button detail at shoulder and cuff. 93% rayon, 7% spandex. Machine wash, dry flat.