SAFETY & DURABLE: This collapsible coffee cup is made of quality raw material- food-grade silicone & PP, which is BPA Free, non-toxic and drop-resistant. The camping mug with cup sleeve. Safe to use and not worries. EXTREMELY PORTABLE: The collapsible camping cup is a great option for a traveller. The cup allows you to enjoy your favorite beverages anytime anywhere with great ease. This collapsible travel cup has an extended height of 5.4 inches, while it becomes 2.4 inches when folded. The material used is quite durable and safe. LEAKPROOF SILICONE SEALING: It has a thickened cup mouth and a straw. The silicone seal ring is provided for preventing leak or spillage. For ease of holding the cup, the middle adiabatic ring prevents the cup from heating up. A thick bottom portion makes it wear-resistant and stable. CAPACITY & ADJUSTABLE - Max 450ml (16OZ) volume capacity, you can adjust the sizes to meet your needs. Easy to clean and carry. whether hot or cold drinking can be used. Leak-proof and heat insulation handheld cup sleeve Easy to Carry- This travel cup is extremely lightweight and takes up very little space. It can be easily carried in your pocket, backpack, or in a suitcase. For greater convenience, this cup comes with a connective portable hook for being hung on the bag.