This coffee cup is made of food-grade silicone and BPA-free material. It features a folding body and a coordinating lid that boast a compact and portable design.With sturdy locked lid, leak-proof, no more worry about spilling the milk or coffee while reading. A perfect gift for the coffee lover in your life! It is great for both indoor and outdoor uses, like home daily using, traveling, camping, barbecue and more. When you're not drinking, it collapses into a compact, liquid-tight disk, saving you space in your backpack pocket.