The 100% cotton rib material provides a soft and comfortable fit for infants and toddlers. Expandable lap shoulder neckline and bottom snap closure make dressing and diaper changing a breeze, while ribbed openings on the legs ensure a secure fit. Perfect for little adventurers who love to explore the world around them. .: 100% cotton rib .: Expandable lap shoulder neckline .: Bottom snap closure .: Printed care label inside .: Onesies® Brand tag on left leg seam