An additional lens used to be a good idea until you tried to install them. Ugh, how do I do this? Rest assured the desire to pick the perfect lens for the conditions has never been easier. With the Blaze and Glide series goggles, swapping lenses takes 5 - 10 seconds (really 2, but we don't want to make anyone feel bad). Maybe it is really dark and you want to try a lens that works better in a whiteout. Go with a highter VLT. It will allow more light. Super sunny day lower VLT. Just want to look cool, well there are options too.