Boys' Short Sleeve One Piece made from 100% cotton rib knit fabric, this fun variety pack of short sleeve onezies is not only comfortable and cozy but will help express his boyish interests. 100% Cotton Rib Knit Material for Comfort and Breathability. Expandable Shoulder Neckline to Help Pull Garment Over Baby's Head Much More Easily. Bottom Snap Closure Is Conveniently Positioned in the Front for Fast-Changing. Ribbed Leg Opening Makes for a Perfect Fit. Machine Wash / Tumble Dry. Available Sizes: NB, S, M, L NOTE: Patterns shown are for illustration purposes only. You may receive a different pattern in the color you select.