The Rambler Food Jar was designed to help you stay fueled wherever your adventure takes you. Whether it's your morning oats or midday salsa snack, the double-wall vacuum insulation holds hot or cold temps until you're ready to eat, while the 100% leakproof MagVent lid allows you to throw it in your bag without a worry. Details MagVent Lid: 100% leakproof when properly sealed, the two-piece lid vents out hot air as it opens and comes apart for easy cleaning. Double-wall Vacuum Insulation: Keeps cold food cold and hot food hot until it's time to eat. 18/8 Stainless Steel: Made with kitchen-grade stainless steel, so it's puncture- and rust-resistant. Dishwasher Safe: Because no one needs more work to do, everything from the jar itself to the two-piece MagVent lid can go right in the dishwasher.