BaoBab by Vaenait Kids Boys Sleeveless Top Shorts Pajama Outfit Set Frog Kindly Check Sizing info. XS(12-18M) / S(2T) / M(3T-4T) / L(4T-5T) / XL(5T-6T) 2 Pieces Set ( Sleeveless Top & Shorts ) Cool and thin material good for outfits also in summer Machine wash cold, tumble dry low. Do not bleach. Recommend to order one size Up If you don't like Tight Style.