This is set is new without tags, and there’s a size chart in the photos. Description from web: Crewneck long sleeve top Long pants with elastic drawstring Breathable, soft material Matching holiday family sets available Fabric: 70% Recycled Polyester, 25% Polyester, 5% Spandex Care instructions: Wash before wear. Machine wash cold. Inside out, as with colors. Use non-chlorine bleach if needed. Tumble dry low. Remove from dryer promptly. Do not iron. Do not dry clean.