The outer layer of this product is made of 201 stainless steel, and the inner layer is made of 304 stainless steel. Compact design takes up minimal space while maximizing capacity for effortless transport and storage. Metallic luster is beautiful and elegant. You can print your company logo, slogan, and any other text or patterns you want on the outside of the cup. This mug will be the best publicity item for your company. Measuring 12:oz, this custom 12oz portable metallic stainless steel vacuum bottle. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. We offer logo printing and full packaging customization. Product Highlights: BPA-free, leak-proof, travel-friendly.