Recently bought a pair of Gascan's,, & was told that Thump 2 lenses are all but the same, & the online Vault was having a Fire Sale on them, so I snagged up Bronze, Black Iridium, & VR50. I also saw they were offering Monster Dogs, ... a model I have always wanted to have, & they were Polarized!, ... so I snagged up a pair of them as well ... Matte Black/Grey Polarized, though I am sure most of you saw them anyway. But what was cool, at least to me, was to find them in an "Elite SI" bag. Definitely something I did not know they came with. Is this something goofy, or do/did all MD's come in the SI "series" or something?