lucky charm organic cotton magnetic parent favorite footie GOTS certified organic cotton: grown without pesticides & free of harsh chemicals. SewSafe™ magnetic closures make for easy dressing and changes. easy care, machine wash. features based on size: magnetic closures: magnets line the seam from the neck to upper thigh for sizes up to 0-3m & from neck to crotch for sizes 3-6m and up. snug fit: sizes 9-12m and up follow snug-fit & flammability standards—consider sizing up. mitten cuffs: built-in fold-over cuffs for sizes up to 6m cover hands & protect from scratches. grippy feet: non-slip foot grips for sizes 9-12m and up.