EVERYDAY COMFORT. The Nike Sportswear Romper is made with lightweight, comfortable cotton for everyday comfort. Benefits: Cotton fabric is lightweight and comfortable. Snap closures at the bottom make dressing and changing easy. Product Details: Fabric: 100% cotton. Machine wash. Imported. Style: 5ND369; Color: Game Royal; Size: 9M; Gender: Male; Age Group: Toddler | Nike Sportswear Baby (0-9M) Romper in Blue, Size: 9M | 5ND369-U89