Explore your underwater surroundings by wearing the TUSA Imprex Adults' 3-D Dry Combo. The single-window mask with ClearVu tempered glass lens provides enhanced visibility, while the EZ adjust buckle and silicone skirt help keep the mask secure. The Hyperdry nose-purge system clears the mask with 1 exhalation, and the Hyperdry Elite dry top technology keeps water out of the snorkel.