Native Apex Lens Kit - One Size - Brown - Native Apex Lens Kit. The Native Apex Lens Kit is a replacement lens kit for your Apex frame sunglasses. Sometimes a medium light lens is better for your next adventure, so remove whatever lens you have in your shades and put in a new shade. A different color can do a world of difference for a particular environment, whether it's helping you see the trail better or peer over the glassy waters. The Native Apex Lens Kit includes 1 pair of replacement lenses.