Flip, Bite, Sip Design: Drink easily through the straw with CamelBak’s signature spill-proof and leak-proof bite valve Leak-Proof When Closed: Self-sealing valve prevents spills and leaks during transport or activity Lightweight and Durable: Made with Tritan Renew, a sustainable and impact-resistant plastic Easy to Carry: Comfortable carry handle for grab-and-go hydration Safe and Easy to Clean: BPA, BPS, and BPF free; top-rack dishwasher safe for hassle-free cleaning