Pit Zips

Pit zips are zippered vents located under the arms (armpit area) of rain jackets, shell jackets, and other outdoor outerwear. They allow hikers and backpackers to quickly regulate body temperature and ventilation without removing the jacket entirely. When opened, pit zips provide crucial airflow to prevent overheating and reduce moisture buildup inside the garment during active pursuits like hiking uphill or in warm conditions.