Boys swimming suit with spider character,cars character and Avengers character designs.it Has zip at the b back.Made of Nylon / Elastine Material.Standout with this trendy swimming suit.It has a short sleeve.It aids swimming.Size M is for 4-5yrs,L is best for 5-6yrs,XL is good for 6-7yrs,XXL best for 7-8yrs and XXXL is just right for 8-9yrs.