Original Spout Lid - Easy One Handed Delivery. Hinge-Lock Keeps Cap Out of the Way While Drinking. Leak Proof. Wide Mouth for Ice Cubes and Easy Pouring. One Lid Fits All Bottle Sizes. Food Grade 18/8 Stainless Steel Construction. Durable Powder Coat Exterior for Easy Grip and Protects Hands from External Temperatures. Sweat Free Double Wall Construction. Vacuum Insulated for Superior Temperature Retention. Stays Cold Up to 24 Hours and Hot Up to 12 Hours. No Flavor Transfer. BPA Free.