First of all, I have now (almost) owned every version of Tom Bihn's face masks, and I have to say that with each generation comes innovation and expected improvement. I do not leave my home without a Tom Bihn mask around my neck, and I really cannot think of any more improvements (other than the neck strap sometimes needing stretching to comfortably wear). Overall, as far as masks are concerned, the V6 mask is the perfect mask. I guess another potential improvement might be changing the wire nose piece with a softer/more malleable material, but now I am just being picky! Ha! Great job Tom Bihn on these masks! This mask has been a game changer for me, since the clever design of face to neck use makes it very convenient and sanitary to use. I really never leave my home without one... The amount of masks that I have purchased tells the story... I even give them out to folks whenever I receive any comments or interest. Great product! Oh, by the way, these masks do run large, so I bought the medium to fit what I consider a large (i.e. 7.5 inch circumference head). Good fit! Thank you Tom Bihn! Keep the improvements coming! Take care.