Smart water bottle that tracks the water intake through the HidrateSpark® app and glows hourly to remind you to drink. Made from vacuum insulated stainless steel material, keeping drinks cold for up to 24 hours. The leak-proof straw lid has a protective cover to keep it clean. The powerful "Tap To Track" technology updates the water intake on the HidrateSpark® app by simply tapping the smartphone to the NFC tag on the bottle. BPA free.