Owala 40 oz Lost Valley Tumbler is your ultimate hydration partner. Designed to keep you refreshed and satisfied with its generous capacity, so you'll be making fewer trips to refill, allowing you to focus on staying hydrated throughout the day. Whether you prefer sipping with a straw or swigging through a lid, the 2-in-1 lid innovation allows you to choose your preference. With spill-resistant technology, you can confidently carry this tumbler wherever you go. The triple-wall insulation ensures your beverages stay hot or cold for longer, keeping your drinks at the perfect temperature. Thoughtfully designed with a wide opening, you can easily add ice and clean your cup by hand with ease. Plus, its slim bottom fits snugly in most car cup holders, making it your ideal travel companion.