DrinkTanks® 64 oz Insulated Growler is cast from high quality 18/8 stainless steel, and has double wall vacuum insulation. The BPA free poly cap is secured by a sturdy dual-bail cap system that is leak-proof and keeps contents cold for 24+ hours and hot for 12+ hours.Item Specifications: 64 oz Capacity with a swing-top for an airtight seal Cold 24+ hours / Hot 12 + hours 18/8 Premium Stainless Steel / BPA Free Durable and Leak-proof Easy Pour Handle Dishwasher Safe Holds up to 60 PSI Lifetime Warranty Personalize with 1 Line/15 Characters in a monogram design.