Product Specifications: 300ml capacity. Before folding, the top diameter is 95mm, the bottom diameter is 50mm inches and the height is 85mm. After folding, the height is only 13mm and the temperature range is from -40F to 480F. The small foldable volume and light weight make it suitable for home and outdoor use. . Hygienic materials: The collapsible travel mug is made of 100% food grade silicone + PE, with stainless steel edges and plastic lids. Easy to clean, odorless, stain free, durable, flexible and reusable. . Ultra-thin folding design and portability: updated foldable design, save space, folded only 13mm, very suitable for your bags, wallets, backpacks, suitcases, does not take up space, very suitable for outdoor hiking, camping, travel and sporting events. . Excellent performance: It can be hung on the bag connected with the hand strap and hand hook. The measured value in the cup is easy to read. The stainless steel rim of the cup is easier to hold and drink. -Close the lid tightly to prevent dust and dirt from entering. . Offer: If you have any questions, please feel free to contact us. We will try our best to help you solve it. .