The Gerber 5-Pack Onesies in White - one piece underwear are an essential in baby's wardrobe and great for use as a layering piece under your favorite outfits to keep baby cozy warm. Essential for every new mom and great for gift giving! The Gerber 5-Pack Onesies - White Preemie features: Made of 100% cotton for comfort and softness Lap shoulder neckline for ease of dressing Snap closure conveniently positioned for ease of changing baby's diaper Hems are double stitched to keep smooth after excessive washings Machine wash and dry.