What Our Gearhead(R) Experts Are Saying:"I pull these on over my baselayers for cold skintrack starts and summit transitions. They add serious warmth without feeling bulky, and the slim fit slides easily under a shell. The 800-fill down lofts fast, and I love that they pack into their own pocket when I don't need them. They're a staple for winter objectives."When the wind bites and the skintrack stretches into the high alpine, we rely on the Ghost Whisperer Pant from Mountain Hardwear to keep our lower half warm without slowing our stride. Designed for sub-zero missions and frigid transitions, these ultralight insulated pants give us the confidence to linger on summits and push deeper into winter terrain. The 800-fill goose down traps heat efficiently while maintaining impressive compressibility, and the Whisperer 15D ripstop fabric keeps weight to a minimum without sacrificing durability. Ankle zips with snap closures make it easy to layer over boots, while the slim fit slides comfortably beneath a waterproof shell. When the sun climbs higher, the pants pack into their own pocket, disappearing into our pack until the next cold push.