What Our Gearhead(R) Experts Are Saying:"I throw the Nebula Pro Vest on for everything from cold-weather cragging to shoulder-season hiking. It traps heat in the core but leaves my arms free, and the shell is tough enough for bushwhacks or rough granite. I especially love the chest pocket access when I'm wearing a harness."When we're pushing through alpine scrambles, windy ridgelines, or misty forest trails, the Nebula Pro Vest gives us the warmth we need without slowing us down. Rab designed this vest for core insulation with full freedom of movement, using blown synthetic insulation that performs in cold, damp conditions. The durable shell stands up to rock, brush, and pack abrasion, while thoughtful features like a harness-compatible storage pocket and fleece-lined chin guard make it ideal for fast-moving winter hikes or layered mountaineering missions. Whether worn over a base layer or under a shell, the Nebula Pro Vest is ready for technical terrain and tough conditions.