Stay hydrated on-the-go with this 40oz Charcoal/Mint Green tumbler from Stanley. It features 11 hours of cold, 7 hours of hot, and 2 days of ice retention, thanks to its 18/8 stainless steel and double-wall vacuum insulation. The reusable straw and screw-on 3 position lid make it easy to use, and it's also dishwasher safe for easy cleaning. Buy with confidence as customer satisfaction is our top priority.