Ensure she sleeps comfortably by adding this 2-piece Hello Kitty pajama set into your little or big kid girl's rotation. Made from super-soft flame-resistant knit, it features a notch collar button-down short-sleeve top and a pair of matching pull-on shorts. 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.