XLAB Torpedo Versa 500 BlackXLAB Torpedo Versa 500 Black Airflow. Aerodynamic dual bottle BTA hydration system that features a dynamic multi position computer mount. Computer mount can be raised up to tuck in a refill bottle for race day or lowered down for a standard bottle while maintaining the optimal view for training days Telescoping Garmin mount features on the go tilt adjust to avoid glare Zero leak design with a sealed viewing window to easily monitor liquid levels Leak