Keeps your drinks cold for 24 hours, hot for 12</br>BPA-free double-walled food-grade 18/8 stainless steel, and sensibly tested for healthy hydration</br>Vacuum seal prevents bottle from condensating</br></br>Product Description</br></br>mug</br><br/>http://www.amazon.com/gp/product/B01N5D9VRQ