Keyfacts: Insulating bottle with screw cap (0.5 l). 100% high quality and certified food grade stainless steel. Without plastic and harmful substances. Keeps warm/cold for up to 8 hours. Leak-proof with food-grade silicone ring. Through the day with hot or cold drinks. You don't want to do without hot or cold drinks on the go? The 0.5 L insulated bottle YIN with its double-walled insulation ensures that your hot drinks such as tea or coffee stay warm for up to 8 hours and cold drinks remain refreshingly cool up to 8 hours even in summer. This makes a stressful day at university or at work a bit more pleasant and adds even more fun to active days in nature. In addition, you protect your health and the environment: the insulated bottle is made of non-toxic and odour- and tasteless 18/8 stainless steel and will accompany you for a long time. This way you can fill your YIN again and again with your favourite drinks and simply avoid all the harmful plastic bottles. The wide opening makes