[Health Materials] The collapsible travel cup made of food grades silicone, guaranteed stainless steel rim and plastic lid. Easy to wash, odorless, non-staining, durable, flexible & reusable. A folding mug can solve your drinking problem. You can also cook some hot drinks and heat food by the collapsible silicone cup like coffee, because the material is resistant to high temperatures, so don't worry about breaking the cup construction.[ULTRA-THIN FOLDING DESIGN] Update the collapsible design, space saving and only 0.59In when collapsed, fits well in your pocket, purse, backpack, suitcase and takes up no space, ideal for outdoor hiking, camping, travel, and sport events. It is also very convenient to clean. You only needs to be opened with a little water to wash it. The smooth surface will not make food residue.[PERFECT PERFORMANCE] Can be hung on the bag of a connective hand rope and portable hook. - Easy to read with the measuring inside of the cup. - Much easier to hold and drink from the stainless steel rim of the cup. - Tight fitting the lid prevents any dust and dirt to get close. The sturdy design guarantees flexibility with rigidity. The solid secure base and the stainless steel ring make the mug comfortable to hold and safely to carry.[VERY EASY TO CARRY] The capacity 9.22oz(270ml). After folding, the Height only 0.59In, temperature range from -40F to 480F. The small collapsible volume and light weight made them both of these use for home and outdoors. The folding design can be adapted to almost any occasion, whether it is outdoor sports, indoor rest, concerts, sports fields, mountain climbing, camping, cycling, tourism, football fields, etc.