Our Baby Onesies Are Made Of 100-percent Organic Cotton Fibers, cotton blend,comfortable,breathable,skin-friendly,no harm to babies' delicate skin.Naturally Grown And Naturally Soft, The Lap Shoulder Neckline Provides Ease Of Dressing,hems Are Double Stitched To Keep Smooth After Excessive Washings And A Snap Closure Conveniently Positioned For Ease Of Changing Baby's Diaper.