Blue Infant Gown With Long Sleeve with Mitten Cuffs are the best way to keep your little one warm all night long; especially in the Autumn and Winter months. With the built-in mittens, their hands will be kept nice and toasty so you can even have him bundled up in it for any outdoor time in the evening. Covered Elastic Bottom. 100% Cotton 1x1 Rib Knit. Size: One Size. Newborn Up to 6 Months Colors: Blue.