LSA-420's unisex style boasts a lightweight. pilot frame made with the finest titanium in the world. These round P-3 shaped sunglasses were designed to capture the grace and elegance of birds in flight. The custom anti-walk hinge pin with open/close assisted detent feature ensures a secure fit. while the sleek and stylish design exudes confidence and style. Inspired by the beauty of nature. LSA-420 provides the versatility and function needed for any adventure.