OverviewGet the benefit of readers and sunglasses all in one! These Costa polarized sunglasses feature a durable TR90 nylon with an almost weightless rimless look! They weigh in at a lightweight 16 grams! They are ready for any adventure a day on the water brings. Equipped with patented C-Mate technology, these readers are available in the power ranges of +2.50, +2.00 and +1.50.