Features: 18/8 stainless steel construction offers long-lasting durability Double-wall vacuum insulation helps keep beverages hot up to 10 hours, cold up to 18 hours, and iced for up to 2.5 days Trigger-action lid helps prevent any spilling Lid is designed with a push button, which opens to a mouthpiece on top Fits in most cup holders for convenient travel Easy to clean, and is dishwasher safe BPA-free Part of the Go Series Capacity: 36 oz.