The vacuum insulated stainless steel interior and exterior is non-reactive to all food and beverages.. Keeps beverages cold & fresh for 6 hours; Kid proof unbreakable design is perfect for infants and toddlers. Insulation helps inhibits dangerous bacteria growth. BPA Free materials ¿ Stainless steel interior and exterior ; Soft drinking spout is made from food contact safe Thermoplastic Elastomer (TPE). Dishwasher safe for easy care; Sweat proof design won't leave water rings. |