Alpinestars Cooling Vest The Alpinestars Cooling Vest has broad open-air perforations that not only ensure that the vest retains its shape but also doubles as air vents, helping to keep the rider cool at all times. A must-have for hot weather riding, using water to control the core temperature of the rider. Its stretch components guarantee an optimal fit and maximum benefits from air and water cooling, even during intensive off-road maneuvers. With a user-friendly water port, it enables quick refill without any spillage, ensuring minimal interruptions. Features: Liquid cooling system that evenly releases cooling water droplets (mist) against the rider's midsection Regulates vascular system and limits the effect of heat exhaustion Incorporated stretch inserts for fit and improved ventilation Designated air ports allow for airflow and breathability Lightweight with a refillable water chamber for easy continuous use Three-layer textile construction with moisture-wicking fleece lining