100% plastic free sport bottle with leak-proof Big Mouth sport top and no internal lining to ensure nothing ever leaches into your beverage Includes leak-proof Big mouth sport top and bright-colored sleeve crafted of medical grade silicone; top not for hot beverages Dishwasher safe, food grade #304 (18/8) stainless steel and medical grade silicone contains no BPA, BPS, EA, PVC, Phthalates, or other toxins Colorful SWIRL silicone sleeve eliminates condensation, provides additional grip, and features a convenient finger loop for carrying Big Mouth sport top flips open to reveal chuggable wide mouth opening with soft mouth touch point & splash guard