I ordered the C4E Element pants on Tuesday and received them last night. My initial impression is positive. For roughtly half the price of Sitka's 90% pants, the Elements seem to have all of the same features and initial quality. I haven't hunted with them, so I can't speak to their long term durability. But here are a few thoughts. Features include: zippered lower leg and draw string cuffs, thigh vents, two way stretch material, easily removable knee pads, suspenders, and useful pockets (unlike Kryptek pants). The pants I ordered ran true to size. If you order some, measure your waist with a tape. Levi and other manufactures tend to understate waist size by 1-2 inches.
The Element is a heavier pant, which is why I mentioned the Sitka 90% earlier. I will not wear this pant in late August or early September when elk hunting in Colorado since the day time temps can reach upper 70s to low 80s, even at 9,000-10,000 feet. C4E has a Switchback pant that is designed for warmer weather hunts. I don't have that pant, but Camofire is putting it on sale today.