New Hobie Mens Rockpile Rectangle Sunglasses,Shiny Black Frame Grey Lens,One Size One Size:Black 3 inch wide high stretch Blue Pink 3 inch wide high stretch elastic stabalizing straps mimic the effects of the figure 8 of a tape job Unique 2” elastic heel lock design helps control the inversion and eversion of the ankle without a dramatic increase in bulk Right foot or left foot won't chafe & stretches without absorbing sweat 4 way stretch construction moves better in every direction Material wicks sweat & dries really fast Anti odor technology prevents the growth of odor causing microbes light transmission & impact resistance advanced hydrophobic coatings that are applied under controlled conditions resulting in a lens that sheds water