BPA-free travel tumbler has stainless steel outer and inner walls. Double-wall vacuum and copper insulated. Stay hydrated in style with this sleek 25 oz stainless steel tumbler! Whether you're on-the-go or just lounging at home, this tumbler is perfect for keeping your drinks at the perfect temperature. The spill-proof lid and convenient built-in straw make it easy to sip on the go, while the high quality 18/8 food grade stainless steel construction ensures durability and odor-free beverages. The double wall insulation and copper lining keep drinks cold for up to 30 hours and hot for 12 hours, making it versatile for any drink preference. Plus, it's sweat-free and free of any toxins, giving you peace of mind with every sip. With its convenient size, this tumbler fits in most cup holders, making it the perfect companion for any adventure. Stay hydrated and stylish with this stainless steel tumbler! Complies with FDA.