But what separates the Klim from a lot of the other weatherproof gear is the combination of three very crucial areas of performance. The gear is built tough, using 840-denier Cordura in the high-wear areas, which should last for more than a few seasons. This is important when you lay out cash like this. Second, they open up (pant and jacket, both) and ventilate with properly placed, functional and controllable weatherproof zippered closures. And the best part-the fit. The stuff is about average in weight for foul-weather gear, but it rides on your body like a lightweight shell and pant. That for a very normal-build 5-foot 10-inch, 185-pound rider wearing 34-inch waist and XL jacket. It does not restrict you while riding and isn't floppy or flappy in the wind. The build list of the pants and jacket (check out the website) will make a feature fiend happy and has more than enough information to fill up all the well-placed pockets in the pant and jacket. There is room for all the necessities short of adventure touring. The collar is lined with brushed tricot, a fleece-like gasket material so the neck does not chafe, and the closures on the neck and sleeves cinch up to keep the elements out, then open up to let air in. The shell is windproof as well as water-deflecting, so the jacket is about as warm as you could expect from a non-layered jacket. But if it gets warm out, the large underarm/torso zippers will let in the air immediately.