This cooler cup has a non-slip bottom, rounded mouth, does not hurt the mouth more peace of mind, food-grade stainless steel 304 liner, more healthy! The water bottle is ideal for easy travel, perfect for outdoor sports, work, beach, school, office, picnic, yoga, hiking, camping, cycling, running, etc. Simple and practical, it is the best gift for friends, family, children, sons and daughters. In addition, if you need customized logo, please contact us.