The Rab Bigline Jacket is a waterproof, breathable shell built for ski touring and big days in the backcountry. It pairs reliable storm protection with the mobility and ventilation you need on the climb, then keeps the weather out on the way back down. Waterproof & breathable: A durable waterproof, breathable construction seals out snow, wind and rain while releasing excess heat and moisture. Ski-touring ready: Articulated patterning delivers uphill efficiency and unrestricted movement across variable mountain terrain. Helmet-compatible hood: An adjustable, helmet-compatible hood locks in coverage when conditions turn exposed and stormy. On-the-move ventilation: Pit-zip venting lets you dump heat fast during high-output climbs. Practical pockets: Harness- and pack-friendly pockets keep essentials secure and accessible. Sealed construction: Taped seams and weather-resistant zips add durable, all-day protection.