The Y MountainLine Breathe 3L Shell Jacket is a modern three-layer shell jacket for mountaineers who want low weight, compressibility, and a reliable high-performance design. The perfect model for demanding mountain activities such as ski touring and brisk hikes. The super-soft and lightweight outer fabric is made from 100% recycled polyamide. Combined with our Bega Membrane Breathe Pro™ technology, the fabric offers superior weather protection and exceptional breathability. Athletic fit with an extended back for optimal freedom of movement, even when wearing harnesses, backpacks, and helmets. And speaking of helmets, the adjustable 3-way hood with an internal sealing edge ensures that your head, neck, and lower face are protected from the weather in no time at all—with or without a helmet. Generous ventilation zippers under the arms provide excellent ventilation options. You can even slip your arms through and wear the jacket as a vest on warmer days! The two spacious Napoleon pockets with expandable volume offer plenty of room for supplies and your devices. For added security, the inner pocket is equipped with a fastening hook. If you're looking for a lightweight, compressible, and reliable shell jacket, the Y MountainLine Breathe 3L Jacket is just the thing!