PORTABLE AND CONVENIENT: Beautifully designed, minimalist, collapsible travel mug highlights an important feature: only 1.5 cm when folded. When fully stretched, it is strong enough to hold two ounces of coffee. Ultra-compact and foldable, you can put it in your pocket and take it with you. Suitable for bags, backpacks, lunch boxes. Safety material: Foldable travel mug is non-toxic, has no aftertaste or odor. It is made of food-safe silicone and stainless steel. Can withstand various temperatures from -50 to 200 . It can be used in microwave ovens and refrigerators. Easy to clean, durable, flexible and reusable. Space-saving: the folding cup is small and light. The product comes with a rope so that you can hang it on the backpack. Or you can put it in your pocket. In short, it saves space. The foldable and lightweight design helps save space. Ideal for outdoor camping, hiking, office or sports activities.