Quiksilver- 2T RASHGUARD and quiksilver BOARD SHORT (tag says 6-9mo) but my son wore these from 12mo with swim diaper up until he was 3 years old. Definitely sized incorrectly. See photos to help compare. Board shorts waist- elastic is worn and string is a fake adjustable tie Rashguard SPF material. Still in great shape. Thin and cool and dries quickly. Perfect for beach or water park.