MATERIAL - 95% Polyester, 5% Spandex. Ultra-soft and cozy Moye Child pajama set. KIDS MODAL PAJAMA SETS - Girls boys comfy pajamas with super stretch touch, silky-smooth, very softly for children both girls and boys. Friendly to sensitive skin and perfect in the lounge and sleeping time. UNISEX DESIGNS - Two-pieces button down sleepwear set with short sleeved top and elastic waist shorts, making your kids feel relax. Classic notch collar, chest pocket lend sophisticated detail. Superior stitching, perfectly-lined hems, not easy to be deformed or got faded. WASHING TIPS - The boys girls nightwears are suitable for both hand washing and machine washing. Hand wash gently can slow down the process of wear down or stiffen up; After cleaning, hang it to dry and do not expose in the sun; Can be folding storage or hanging storage. SIZE - More measurements please refer to the size chart on description before ordering.