Designed specifically for the active lifestyle, the rectangle-shaped Maui Jim 433 KOKI BEACH sunglasses are ready to take on anything. The tortoise black frame, featuring a sleek rectangular shape, is paired with grey mirror polar lenses, providing optimal protection from harmful UV rays while also adding a touch of style to your look. Crafted from resilient materials, these rectangle-frame shades are built to last so you can focus on what really matters—having fun.