This cup is made of food-grade silicone and food-grade polypropylene plastic, can pass FDA, BPA-free, odorless, no stains or plastic taste, ultra safe for your drinks ready to go indoor and outdoors.It also includes a silicone straw. Lightweight and foldable design make it space-efficient for easy store in the backpack for travel. Exquisite and delicate, combined with the eco-friendly design, it is a meaningful and perfect gift for promotion