Stay cool and focused during track days with the Chillout Systems Club Series Cooling Shirt. Its dual-layer soft-stretch cotton conceals strategically placed thermal conductive cooling veins that help regulate core body temperature. Designed for comfort and versatility, it pairs with both refrigerant-based and traditional ice-based driver cooling systems. Compatible with Chillout, Coolshirt, and F.A.S.T. driver cooling systems. Cooling system connectors are not included and must be purchased separately for all setups.