EcoVessel BOULDER Vacuum Insulated Stainless Steel Water Bottle with Dual Opening Top and Tea, Fruit, Ice Strainer OFFERS VERSATILITY AND CONVINIENCE - The Boulder is where is all began! A versatile bottle offered in popular sizes to fit most cup holders, take it anywhere to enjoy your favorite hot or cold drinks. TRIPLE INSULATION FOR SUPERIOR PERFORMANCE - This bottle features our vacuum TriMax triple insulation technology and has been tested to keep liquids cold for 36 hours and hot up to 8 hours for convenient hydration through the day DUAL USE LEAK PROOF TOP - Its dual use leak proof top has a wide opening for easy filling and a small opening for easy drinking. A versatile vessel for anything, anytime, anyplace and now available with interchangeable tops DRINK WHAT YOU WANT - Fill your EcoVessel Boulder with tea, fruit, or ice for a different experience! Comes with a removable ice, fruit, and tea strainer so you never get bored of your drinks again