Top is 18 months, bottoms are 2T Bottoms do have signs of wear The Nike Dri Fit Toddler Boys Top and Shorts Set in size 18-24 months is a stylish and functional outfit for active young boys. The set includes a red short-sleeve pullover t-shirt with the Nike logo accent, and coordinating shorts. Made of polyester, this 2-piece set is machine washable and perfect for casual occasions during the warmer seasons of summer, fall, and spring. The design is solid, with a sports theme that is ideal for running and jogging activities. Trust in the Nike brand for quality and comfort in this cute and practical outfit.