Love these sweet surf shorts! Chartreuse is one of my favorite colors, and these definitely did not disappoint! My son is 3 1/2, 32 lbs, and typically wears a 3T in bottoms and a 4T in tops. I bought these in a 4T to stretch them through next summer, and they fit TTS. Slightly big for now, but definitely wearable, and will be perfect for next summer too!