2-piece baby boy set.; Cotton fabric, envelope neck, fire department printed front bodysuit.; And thick, cotton, terry-style knitted, striped tights trousers.; Flexible design for babies to move comfortably.; Cute fire department pattern on the butt.; All Denokids products are produced with child safety in mind and have been passed through needle detectors.; 100% Cotton Bottom: 90% Cotton 9% Polyamide 1% Elastane