Teachado - 450ML Leisure Portable Water Tea Travel Mug With/Without Tea Infuser, Tea Lattice (Purple) The body is made of high quality heat-resistant Polycarbonate and is not easy to burst due to the high or low temperature BPA free.ap is made of high quality Polypropylene, and seals are made of food grade silicone, Bottom is made by Acrylonitrile Butadiene Styrene. The tea cup comes with Tea Lattice for storage of tea leaves This travel tea cup is good for travel hiking, outdoor picnic, and office use. Licensed trademarks of WSWS LLC