Polar Half Twist 28-Ounce Stainless Bottle Adhering to our strict environmental and ethical practices, the bottle is BPA-free and Phthalate-free, odorless, and designed for ultra long life All parts of the bottle are dishwasher-safe You can take apart the cap and gasket for thorough cleaning It's an elegant bottle for those who want a hip yet practical option for hydration on-the-go Single-wall stainless steel water bottle