Outstanding Warmth and Packability | Lightweight yet impressively warm, this alpine-ready down jacket now offers an anatomical fit for a better range of motion for climbing and mountain travel. 800-Fill RDS Down With Nikwax Hydrophobic Finish | Lofty, ethically sourced down with a water-repellent treatment traps body heat and dries quickly. Pertex Quantum Pro | Water-resistant coating to keep you dry and comfortable in fickle mountain weather. Durable Where It Matters | Ripstop material over the shoulders and upper sleeves add increased abrasion resistance. Customizable Fit | Adjustable helmet-compatible hood and adjustable cuffs let you batten down the hatches when the weather turns up. Rab’s Neutrino Pro Jacket is as much of an alpine essential as instant coffee. Unlike instant coffee, the Neutrino Pro is sporting some new updates, namely an anatomical cut that gives you unrestricted range of motion as you travel through the mountains. Rab kept everything we loved about the original Neutrino Pro, like impressive warmth and packability, ethically sourced down fill, and a water-resistant finish to keep you dry when weather rolls in.