30 day satisfaction guarantee!nSoft hypo-allergic silicone skirt and adjustable strap for a positive seal and long lifenAll black super soft silicone construction with metal trimnHard to find old-school styling!nAwesome "old school" 1 lens mask for you to enjoy on your next dive. Features of this great mask include: 1 Window classic design Hard to find styling 1-window style for a large view Soft hypo-allergic silicone skirt and adjustable strap for a positive seal and long life Tempered glass lenses Adjustable silicone strap All black with metal trim! Be the the talk of your next dive with this CLASSIC scuba diving mask!