This design is printed with eco-friendly plant-based inks directly on the stainless surface. Decorated wide mouth bottles include an insulated, quick access spout lid. Included lid is leak proof and BPA-free with ergonomic loop for easy carrying. Drinking surface is fully protected when closed. Large bottle opening makes it easy to add ice cubes and bottom features a quiet non-slip base. Triple insulation reduces condensation and keeps your drink cold for up to 60 hours. Copper-lined 18/8 stainless steel construction is durable, and material won't retain tastes or odors. For best results, hand wash with soap, water and a scratch-free sponge. Towel dry immediately to help preserve exterior. Do not soak or use cleaning materials (bleach, chlorine, etc.) and do not put in dishwasher, freezer or microwave. Stainless steel tumblers and bottles feature a limited 5-year guarantee.