Aerodynamic dual-bottle BTA hydration system that features a dynamic, multi-position computer mount. Features: 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-free Dolphin Breather Valve that lets air in but doesn't let water ou