Frame – polycarbonate Skirt – hypoallergenic liquid silicone Strap – silicon Lenses – tempered glass Optical lenses – from -1.0 to – 6.0Packaging – rigid transparent box included The peculiarity of the Iena mask lies in the carefully studied design of the skirt to reach the utmost anatomic fit. Add the two-button buckles on the skirt that make it easier to adjust the strap, the possibility of assembling corrective lenses and its modern and appealing look: Iena is a valid and safe solution for many who love the sea.