Better bottle. BPA free. Bite-sip-go! Spill-proof bite valve opens with a bite & closes automatically. Drink more. Feel better. Drink up to 24% more with the CamelBak Big Bite Valve. Instructions inside label. Reusable & BPA-free. Tritan taste-free and durable. Portable and convenient. Easy to clean, dishwasher-safe. (Study at Pepperdine University showed people drink up to 24% more with the CamelBak Better Bottle than with disposable bottled water and other reusable bottles.) China.