There's really a lot to say, and like about this paintball mask, and they have pretty thoroughly highlighted the exacting features in the listing and on the packaging. Rather than just regurgitate all that, I want to talk about some of the features I found most notable. I'll start by pointing out that I don't get to play often and so I haven't had a chance to field test this yet and I've only ever used the Valken MI-7 in the field before. That said, I have actually put this on and worn it around in humid conditions when I had a bit of perspiration going just to see how well it resisted fogging. Like the Valken, this does have a dual pane thermal lens, but the is venting a much better designed on this mask, not just above the lens, but directly below it too, to allow for a flow of air (rather than just an exhaust of heat); I didn't experience any fogging with this mask. The lens release mechanism is tool-less and a bit more straight forward than the Valken design, but it wasn't easy to squeeze the tabs and pull the mechanism forward to release - you'll need to set it in your lap to get the best leverage on it. I really appreciate the ratchet style tension for the head band on this, it is much easier to dial in just the right tension without any fussing. Personally, I do think this mask will benefit from a visor, which I plan to order, because my forehead is left just a little too exposed for my liking. Of course, the design of this mask maximizes functionality, but it looks awesome too! The fit is compact and light weight. The range of visibility is great, and hearing/directional hearing is dramatically improved over the Valken. Of course, Mad Dog includes a sweet drawstring microfiber bag with this combo. The bag is thick and soft, perfect for storing your mask scratch and dust free! In summary this is a very well designed mask, which implements the latest technology to keep you protected whilst maximizing, ease of use, visibility and hearing!