Since Laser and I have cleared that obvious misunderstanding up. I have a couple pair of pants with mess the vents. Send me your money ($600 should do, $800 if you have 2 specific brands in mind) and I'll source some without mesh, test them side by side every day all winter in every sort of condition and report back to the community. Your money will be well spent in this public service. Only with full field testing can you consider your journey to be a "pant expert" fulfilled. Remember I'll be working for you so (should it be $1000? Health care and all. ) so it is money well spent to gain that sort of hard data. I'll chip in the gas and season pass to get the research done.
Hell since I'm there and the gas is already paid for I'll throw in some ski pack testing (no vents) just to cover ail the bases.