Costa Del Mar's 06S9009F Tuna Alley Omnfit sunglasses are perfect for any outdoor adventure. The lenses are made of crystal polarized lens material to provide superior clarity and color retention; they also block 100% of UVA, UVB, and UVC rays. The injection-molded nylon frame is lightweight yet sturdy and features a unique rectangular shape. With its patented O Matter technology, the frames gently hug your face for a comfortable fit while providing a stylish look. With their superior clarity, color retention, and durability, these sunglasses make it easy to enjoy all your favorite outdoor activities with confidence.