What Our Gearhead(R) Experts Are Saying:"This is my go-to when the weather gets unpredictable in the high country. It's as light as a windbreaker but offers full-on protection thanks to the waterproof Pertex(R) Shield and 800-fill down. Whether I'm moving fast on a ridgeline or layered up around camp, it's the one jacket I never leave behind."From high alpine traverses to drizzly fall hikes, the Storm Whisperer Insulated Jacket delivers breathable protection and cozy warmth in a featherlight package. Built with Mountain Hardwear's ultralight Pertex(R) Shield 2-layer fabric and packed with 800-fill RDS-certified down, this jacket is an alpine workhorse designed for movement and moisture. A fully adjustable insulated hood and stretch-knit cuffs keep heat locked in when temps plummet, while a two-way front zip and underarm vents help dump excess heat on the move. The slim silhouette doesn't compromise storage, with zippered hand pockets, an interior security pocket, and a stretch mesh stash pocket for gloves or snacks. When the skies open, this jacket stays ready-thanks to waterproof tech that shrugs off storms and a packable build that disappears in your pack until you need it.