Arcteryx's most versatile insulated jacket - the Beta Insulated Jacket is as durable as it gets, extremely warm, and completely waterproof. If you run cold or find yourself on the mountain on the colder days this is the jacket for you. Leveraging Coreloft insulation provides thermal performance trapping your body heat while retaining the jacket's loft. GORE-TEX two-layer construction will keep you dry while remaining breathable. Helmet-compatible StormHood provides full coverage without any inference of your vision. This jacket has it all and looks great as well.