The Rab Men’s Nebula Pro Jacket is a warmer insulator that keeps you nice and toasty on frigid belays and frozen hikes. Its Primaloft Silver Rise insulation is warmer, lighter, and loftier than most heavyweight synthetic full-zips. Rab made the shell with 100% recycled Pertex Quantum Pro fabric for windproof, water-resistant weather protection that packs small and breathes well. The helmet-compatible hood has a concealed face adjuster inside so you can hunker down when high winds are picking up snow.