What Our Gearhead(R) Experts Are Saying:"The Skychaser Jacket is the shell I grab when I know I'll be moving fast in mixed mountain weather. The Pertex Shield Pro fabric breathes better than anything else I've used, and the mechanical stretch means I don't feel restricted scrambling or climbing. It's a killer balance of weight, protection, and mobility."Built for our fastest alpine missions, the Outdoor Research Skychaser Jacket is a low-bulk, high-output shell that thrives when the pace is high and the weather won't wait. Pertex Shield Pro 2. 5L waterproof fabric with mechanical stretch keeps us dry without slowing us down, and thoughtful ventilation makes it a top pick for ridge runs, summit scrambles, and long days above treeline. From a fully helmet-compatible hood to dual pit zips and zippered hand pockets, every feature is dialed for mountain utility. The articulated fit and adjustable hem seal out the wind without limiting movement, while the lightweight, packable build means it's always ready when storm clouds roll in. This jacket is purpose-built for precision in motion.