This is an Officially Licensed Harry Potter Slytherin pajama set, guaranteed! This long sleeve shirt and pant set is perfect for any Harry Potter fan! The shirt features a large front Slytherin house crest logo on a green background. The sleeves and pants have a green and grey striped pattern design. The waistband and cuffs have a stretch elastic feel. Made of soft 100% Cotton this set is sure to be a hit for your little muggle. For questions regarding sizing, please refer to size chart.