The shirts are slim fitting and quite stretchy, and they run small. My 6 year old usually wears a size 7/8 or medium (she’s tall, but slim), and the sleeves on these are at least 1/2 inch above her wrist in that size. Other than that, the shirts are okay; thinner than the French Toast turtleneck we ordered (which was also much roomier), but I guess you get what you pay for.See full review