GOTS certified, gentle, organic cotton PRE, NB, and 0-3M sizes have built-in mitten cuffs NB sizes open neck to upper thigh with a roomy seat for easy changes. Starting at 0-3M sizes, open from neck to crotch with a roomy seat for easy changes. Starting at 9-12M sizes, footies have grippy feet and follow snug-fit standards (consider sizing up in snug fit sizes)
