Our doublelayer vacuuminsulated travel mug is made of excellent heat insulation material which can keep hot and cold liquids water coffeeTea The twisting and dumping function allows you to dump it without moving the stopper and put it in the bag without worrying about overflow or leakage You provide the best experience Our stainless steel water bottle is very suitable for daily use and can be taken with you such as hiking biking beachCampingTravelSchool or company Right size to carry around and fits right in your bags and car bottle holders 4 Best sports Usage OfficeSchoolCollegeGym sipperPicnicHome Color Bliss Black