Safe material: the foldable travel mug made of high-quality food grade silicone material, with stainless steel rim and plastic lid, BPA-free, FDA approved. Easy to clean, tasteless, eco-friendly, durable, flexible, reusable. Portable: camping folding cup, ultra-thin foldable design, easy to carry and space-saving. You can put it in your bag and take it with you. Suitable for bags, backpacks, lunch boxes. Multifunctional: foldable travel cup with good stability, you can put it in your bag. Very suitable for outdoor camping, long distance travel, mountaineering etc. It is ideal for outdoor activities, hiking, office or sports activities. Easy to use: foldable silicone cup, easy to use, use stainless steel cup edges to make drinking more convenient. The tight fit of the fold prevents dust from entering the interior. Size information: the capacity is 200 ml. The thickness after folding is only 20 mm, the small foldable volume and light weight make them both for use at home and outdoors.