Big Chill Boy’s Rash Guard UPF 50+ Long Sleeve Quick Dry Sand and Sun Protection Swim Shirt Lime-mini shark Size 7/8 The size marked on the clothing is 7 and tag size 8- I am not sure what exactly fit. Please compare the measurements to your child rush-guard top to ensure the correct size. New with tag Polyester and spandex Please check all photos attached carefully for further details and information. Please feel free to contact us if you have questions and concerns questions.