This toddler boys’ Cars poly‑jersey short PJ set is made from a lightweight 100% polyester jersey that’s soft, smooth, and breathable for comfy sleep time. It features short sleeves and matching shorts adorned with vibrant Lightning McQueen and car‑themed graphics. Key features include elastic waistbands for easy pull‑on wear, flat or reinforced seams for comfort, and flame‑resistant design (typical for polyester sleepwear). It's the perfect pj set to bring over for sleepovers and show off your Lightning Mcqueen speed and dreams. Fabric and fit are important safety considerations for children’s sleepwear. Sleepwear should be flame resistant or snug-fitting to meet U.S. Consumer Product Safety Commission sleepwear requirements.