The Nalgene Tritan Wide Mouth Glow 32 oz. Water Bottle is perfect for anyone who wants to stay hydrated on the go. The large wide-mouth opening easily accommodates ice cubes and fits most water filters, making it easy to fill up and take with you on the go. The attached loop-top never gets lost, and the printed graduations let you keep track of your hydration. The water bottle is also dishwasher safe away from the heating element, and it's BPA free. Plus, expose it to light for a while and you'll be able to see it in the dark - perfect for a dark room or campsite.