Very, very light. I'm not sure of the exact weight, but from personal experience I think its lighter then the Profiler and around the same weight as the ProFlex.
This is personal preference of course, but I think that the E-Vents are the best looking pair of goggles out there. I've owned and seen just about every pair out there, and these are defiantely my favorites.
The foam on the E-Vents is very soft, similar to that of a ProFlex. When I first got them I couldn't help but walk around with them on everywhere I went (inside the house of course)
I was very impressed with the strong and solid plastic housing the E-Vents came in. This ensures that there is no way your mask is going to be damaged during shipping, and it also doubles afterwards as a nice storage case.
The slits in the front made it very easy to breathe.
After a full day of playing I didn't have one issue with the lense fogging up. In fact, I would intentionally breathe heavily to see what would happen, and still no fog.
Great field of vision, plain and simple.
Along with the E-Vents you get 2 lenses (smoke and clear), 2 visors, microfiber cloth, and a bag for travel. No other mask on the market comes with that many goodies with it, which was a huge plus.
To be quite honest, I think the price is justified. When you think about it, ProFlex owners, between the mask, a new lense, strap, and frame, can spend all the way up to $120 on their mask. With the E-Vents, there is nothing you need for it, because it comes with a very nice Empire Camo Strap, Smoke Lense, and pre-cut soft ears out of the box