TUMI OPTICAL VTU018 Eyeglasses TORTOISE-0722 52mm brings real-world value. Here’s a closer look: TUMI OPTICAL VTU018 Eyeglasses TORTOISE-0722 52mm More info: TUMI OPTICAL VTU018 Eyeglasses TORTOISE-0722 52mm. To get 10% discount use the coupon code VSC10.