Lilly Pulitzer Sophie Dress in Multi Purrfect Green, Size S* 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.