Tackle the challenges of rapid elevation gain and loss with this new, lightly insulated jacket that features a 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.
- Designed for highly aerobic activity in variable weather conditions.
- Higher-denier fabric on forearms for added durability.
- Lightweight, highly air-permeable fabrics.