Striped long-sleeve cotton pajamas are supersoft and breathable, made to hand down again and again. Model is 3'6" and is wearing size 100—all styles designed for an extra year of growth,Hypoallergenic & eczema-friendly,Sensory-friendly scratch-free seams that lay flat on the skin,Like new wash after wash,OEKO-TEX® STANDARD 100 certified safe from hundreds of harsh chemicals