If you own a single shade filter and need a slightly darker shade for comfort, our passive shade 1 and 2 upgrades will meet your needs. Arcone® helmets must use Arcone® cover plates due to the helmet designs. Our cover plates may be used with all other manufacturer helmets. Walter® Arcone® 03-OP Inside and Outside Cover Plate for Helmets with 2 in x 4 in Filter (0.040 in thick)