About this article. HEALTH MATRIALS: Made of food grade silicone, durable and reusable. Allows you to drink water to be comfortable. EXCELLENT DESIGN: Capacity increased to reach 9.22oz / 270ml, collapsed only 1.59cm / 1.5cm height. Ultra-thin and space-saving, equipped with a wrist strap and an anti-fall carabiner, you can connect them together and take them everywhere with you. WIDE USE: The telescopic and lightweight design helps save space. Ideal for outdoor camping, hiking, the office or sporting events. Open the cup halfway, it can be a compact travel bowl. CONVENIENT FUNCTION: The inside of the cup is marked with a capacity unit, handy for checking the water capacity. Use stainless steel cup edges to make drinking more convenient. COLD AND HEAT RESISTANT: Rated temperature -40 degrees F 446 degrees F. Suitable for cold drinks, tea, coffee and other hot drinks. Dishwasher.