A 36 oz. borosilicate glass water bottle with thick protective silicone sleeve. Big Bottle comes with an integrated leak proof flip cap for the cleanest and most convenient drinking experience. No more metal taste. Features: Rotating Ergo Handle Thick protective silicone sleeve Integrated Flip Spout and straw made from Silicone Easy to remove internal o-ring seal design for simple cleaning 100% Leak-Proof cap Wide mouth makes it easy to clean Ice cube compatible Dishwasher Safe BPA, Lead, Cadmium, and Phthalate Free