Maui Jim Sunglasses, style Puamana is a lightweight & sporty Rx-able rectangular monel frame with acetate temple tips,non-slip nose pads, wire core temples, and spring hinges for total comfort. The Puamana is designed to be worn in salt water with its corrosion-proof nickel/silver alloy hinges. Featured on the right lens is the Maui Jim logo. Maui Jim Sunglasses have scratch/impact resistant lightweight polarized lenses that provide superb optical clarity.