The Professional Endurance Racing hydration system is permanently mounted in your helmet. This system includes a rubber surgical tubing "straw" and a plastic male dry-break connection permanently mounted to front of the helmet, This dry break system facilitates connection during driver changes. A plastic female dry-break connection and check valves which connects to an on-board drink system are included. Northstar features the CamelBak drink bottle and it works very well with this helmet system (Sold separately). This product includes parts... more