The Yolly Flutter Lace Nightie is made from luxurious cotton sateen for a silky-soft feel and breathable comfort. Featuring delicate flutter sleeves and lace accents, this relaxed silhouette is perfect for warm nights and slow mornings. 100% Cotton Sateen Breathable cotton sateen Relaxed fit Flutter sleeves Lace detailing Floral print Lightweight feel Our model is a size 4-6 and wears a small in these images.