Tackle the challenges of rapid elevation gain and loss with this new, lightly insulated jacket that features our state-of-the-art Ventrix ventilation for balanced warmth and breathability. Perforations in key areas are designed to expand and dump heat or contract and retain as you move, so you won't overheat or sweat out.

• Ventrix received the prestigious 2017 Editors' Choice award from Backpacker Magazine
• Recognized by GearJunkie as one of their Top Gear Picks for 2017
• Warm, water-resistant jacket with Ventrix dynamic-venting insulation
• Ventrix is the next evolution of synthetic-insulation technology
• Designed for highly aerobic activity in variable weather conditions
• Slim Fit
• Lightweight, highly air-permeable fabrics
• Laser-perforated under the arms for dynamic venting that balances warmth and breathability
• Higher-denier fabric on forearms for added durability
• Exposed, VISLON center front zip