Out of respect for the environment, you always have your GSI Outdoor Microlite 1000 Twist water bottle with you. Whether it's summer or winter, your drink always maintains the right temperature. This is made possible by the vacuum insulation, which keeps your tea warm for up to 18 hours and your refreshment cool for up to 32 hours. By using a reusable bottle, you avoid unnecessary waste and express your environmental awareness: the GSI Outdoor Microlite 1000 Twist Lid bottle is made with one-third less material than conventional drinking containers. This not only conserves resources but also makes the bottle lighter and more compact. So you can take your bottle with a leak-proof twist cap anywhere even more easily.