Made to keep up with all their shenanigans. Set includes short-sleeve t-shirt and coordinating shorts. Short-sleeve t-shirt has crew neck and tag-free label and pieced trim inside neck for added comfort & durability. Shorts have elasticized waistband, with interior drawstring and on-seam welt pockets. Tag-free label inside back waist for added comfort. Super-soft, breathable, lightweight jersey. Engineered with innovative Built-In Flex stretch technology. Equal parts comfort & movement. Go-Dry moisture-wicking technology keeps him dry & comfortable. Boys performance t-shirt has a relaxed fit and hits below waist. Shorts have a relaxed fit and hit mid-thigh. machine wash according to the care instruction label spandex 5% polyester 95% . Best Holiday gift for Kids , perfect Shorts for Christmas!