Whenever youre going to buy Keens, as sizing varies wildly among models and versions, always check the Keen official website for the recommendation on when/if to order a size up. They fit our 5 year old as expected. Those headphones are excellent! I purchased the product again, thinking I must have done something wrong. I bought the gray in size 8 & they fit perfectly. I read the reviews and thought it was a decent product. Her beautiful speaking voice and her Amazing vocal ability. Wasn?t difficult to put together and looks great. Want to open two Word documents at the same time? Nope. I have many sets of wireless and wired headphones and these are by far the worst I have ever tried - I love samsung products I have galaxy phones and half dozen samsung tvs etc but either I got a defective set or they really dropped the ball on this one - absolutely no volume - I compared with same devices and different headphones to be fair and these have no way to turn them up to half the volume of any other set - noise cancellation was non existent - the equalizer was a joke bass boost was the