Mix and match for a variety of sleep options, making bedtime extra easy! carter's cotton PJs are not flame resistant. but don't worry! they're designed with a snug and stretchy fit for safety and comfort. # Pieces In Set: 4 Included: 2 Pajama Top(s), 2 Pajama Pant(s) 1st Piece Description: Top 1st Piece Fabric: Rib 1st Piece Fiber Content: 100% Cotton 1st Piece Care: Machine Wash, Tumble Dry 2nd Piece Description: Pants 2nd Piece Closure Type: Full Elastic 2nd Piece Fabric: Rib 2nd Piece Fiber Content: 100% Cotton 2nd Piece Care: Machine Wash, Tumble Dry 3rd Piece Description: Top 3rd Piece Closure Type: Pullover Head 3rd Piece Neckline: Crew Neck 3rd Piece Sleeve Length: Long Sleeves 3rd Piece Fabric: Rib 3rd Piece Fiber Content: 100% Cotton 3rd Piece Care: Tumble Dry, Machine Wash 4th Piece Description: Pants 4th Piece Closure Type: Full Elastic 4th Piece Fabric: Rib 4th Piece Fiber Content: 100% Cotton 4th Piece Care: Tumble Dry, Machine Wash Base Material: 100% Cotton Fabric Description: Rib 1st Piece Neckline: Crew Neck 1st Piece Sleeve Length: Long Sleeves Country of Origin: Imported For child’s safety, garment should fit snugly. This garment is not flame resistant. Loose-fitting garment is more likely to catch fire.