No creia en los comentarios anteriores de que no son originales ya que no creía que Amazon vendiera piratería pero tengo calcetas originales de Nike compradas en Nike Factory y comparando si se ven de diferente calidad/color, una lástima ya que no hay devoluciones por ser ropa íntima I spent $60+ for plastic flip flops with a leather strap. You can adjust the sound setting easily with this adapter as seller promoted. A good read. Didn’t come with the behind the head strap as described. I did order an xxl based off reviews, I weigh 165 x 5’5 . I love the large buckle. It is a chunk of a sold aluminum. I wear them as long as I can, and with socks in the winter indoors it was as it was described.