The ultimate cycling bottle for rapid and reliable hydrationOptimized Cage Fit: Engineered to securely fit in a variety of bottle cagesEasy Squeeze: Get more fluid with less effortHigh Flow, Self-Sealing Cap: Maximizes flow rate while eliminating splatters and spills100% free of BPA, BPS and BPF: Ride clean, drink cleanEasy-to-Clean Interface: All parts can separate for thorough cleaningPositive Lock out: For leak-proof transportTrutasteTM Polypropylene with HydroguardTM: Taste your water and nothing else, time after time.