Super stylish, elastic waist swim trunks that hit above the knee for a modern classic look and comfortable fit. Appaman runs true to size, but it’s based on a narrow cut. Also, our sizes are based on a garment having a fitted look, like you see on our models. That means, if your child is on the slim or lean side, they will likely wear their usual size and it will fit comfortably. If your child is not the long and lean type, and you are choosing something that’s slim-fitted like a "skinny fit" trouser, you might want to size up to allow for a more generous fit.