Summer sleeper. Used for 2 seasons. Size is L. - Made of skin-friendly gauze material, breathable and absorbent, making it comfortable and less prone to stuffiness! - 2-WAY design: vest or romper style, depending on how you fasten the buttons at the crotch. - Prevents the garment from riding up even when kicking, providing excellent protection against the cold. - Loose fit allows for free movement. Material: 100% cotton