Feel free to fill in your favorite beverage, hot or cold, and take it on the go. The bottom slim design conveniently fits in standard size cup holder.This tumbler help you keep your beverage temperature Hot for 8 hours and Cold for 12 hours,Made of High quality 304 18/8 food grade stainless steel BPA Free Tumbler ,Rust resistant and does not impart an unpleasant scent and flavor. Recommended to hand wash tumbler for greater longevity