Please reference these size charts below before purchasing Babeeni products (all measurements are in inches). If the wrong size is chosen, the buyer is responsible for return shipping. You can view our full Return Policy here. General buyer feedback indicates these run TTS (true to size) to slightly big for an average height child. You will get a more accurate measurement by measuring a similar clothing item than your cute wiggly darling! STS (Shoulder to Stride) measurements are listed separately at the bottom and are for all 1 piece outfits including longalls, jon jons, bubbles, rompers, overalls.