Berb Design Infant Yankee Doodle Onsie This short-sleeve baby onesie is soft, comfortable, and made of 100% cotton. It's designed to fit infants of all sizes, with a rib knit to give good stretch and a neckband for easy on-and-off.   100% baby rib cotton construction (heather contains 10% polyester) made and printed in the usa neckband for easy on-and-off not intended for sleepwear shrinkage: it will shrink an average of one size when put in the dryer