Our most popular bottle. The large opening on our wide-mouth bottles easily accommodates ice cubes, fits most water purifiers and filters, and makes hand-washing a breeze. The attached loop-top never gets lost and screws on and off easily. Printed graduations let you keep track of your hydration. Made in USA, BPA-Free, Impact Resistant/ Unbreakable, Temparature resistant: Microwavable, for Hot or Cold temperatures, Odorless: does not have residual taste, Leak proof.