[This review was collected as part of a promotion.] Love these in Medium for my slim 11.5 year old who is 56” tall. They hit a couple inches above the knee, and the elastic is loose enough to be comfortable without falling off. Most boys’ brands have size 8 and 10/12 (which is just a 12) so these are one of the only brands that fit this size kid! Nice cool material, and the royal blue color stays vibrant.