Promotional Black+Blum Glass Travel Cup 340ML This 340ml travel cup is made from hand-blown borosilicate glass, making it both durable and lightweight. Its taste-neutral material ensures your drinks remain pure, while the fully leak-proof design provides confidence on the go. The lockable lid opens and closes easily with one hand, and a non-slip, protective silicone sleeve offers a comfortable and secure grip. Designed to fit standard bike bottle cages and car cup holders, it’s as practical as it is stylish. All parts are BPA-free, dishwasher safe, and the lid disassembles effortlessly for thorough cleaning.