What Our Gearhead(R) Experts Are Saying:"I wore this above 7,000 meters on a high altitude expedition where the wind never really stopped. The 900 fill down kept me warm through a bivy that would have been miserable in anything lighter, and the double chest zippers meant I could vent on the climb without fully opening up to the cold."Above 8,000 meters, the margin for error disappears, and the HIMALI 8000 Meter Down Suit is built for exactly that razor thin margin. Picture a summit push in the dark, wind driving snow sideways across the ridge, and every ounce of warmth on your body working to keep you moving toward the top. This is the suit that goes with you into that kind of air, where the difference between success and retreat often comes down to whether your gear holds. That reliability starts with 900 fill power RDS certified HyperDRY(TM) down, packed into a Pertex(R) Diamond Fuse shell that's tightly woven to shrug off wind and precipitation without adding bulk. Double chest zippers let you dump heat on the approach without stripping a layer at altitude, while a large hood lip shields your face from blowing snow when visibility drops to almost nothing. Fully taped seams and water expanding thread close off any entry point for moisture, so the down inside stays lofted and warm through the coldest, longest push of the climb.