BENTO BOX WARM SLEEVES JUMBO keep your lunch box warm for hours

These cotton batting-based Insulator Sleeves are made by us in Jersey City. We love the many prints cotton materials offer and only sew up small runs for each print. The changing variety makes looking at them more fun for our customers and ourselves.

The internal material combination of cotton batting, insulation material, and some nylon ensures long-lasting insulation. All sleeves are machine washable.  DO NOT MICROWAVE THE SLEEVES. Microwaving sleeve WILL damage your microwave.  

Each Insulator Sleeve is shipped with 2 Warmer Packs. The packs are filled with natural cherry pits. They are used to pre-heat your Insulator Sleeve and your Bento box. Heat the packs in your microwave, oven, or air fryer. The sleeve measures 11x13" and has a velcro closure.  

The sleeves are sized to hold many containers and boxes up to the below-listed measurements. JUMBO sleeves do NOT fit the Warmables Insulated Lunchbag we offer. ALSO IDEAL FOR CONSTRUCTION WORKERS WHO ARE TIRED OF EATING SANDWICHES. Use our hot bottle filled with tea or coffee to keep your meals extra warm. 

SIZED TO HOLD THE BELOW BOXES.

BENTGO MODERN BOX 9x7x2.4" 

YUMBOX PANINO 8.5x 6x1.8"

YUMBOX TAPAS 9.5x6.9x1.8"

PLANETBOX ROVER 10x7.4x1.5"

You can use any other container fitting into the Sleeve. For best results use smaller, cube-like boxes and fill-up compartments versus spreading the food out in a larger box.  

Unsure which Sleeve to order for your box? Send us an e-mail providing the measurements and we will gladly advise.    

Directions: 

-Preheat your Bento box and Insulator Sleeve using the warmed-up heat packs 

-Heat up your food and pack it in your Bento box or food storage container  

-Reheat the pit packs and put them inside the sleeve along with the food 

-For extra-long warm time pack everything inside your insulated lunch bag,

IGLOO box or wrap it in a blanket to keep in your car until lunchtime. 

FOR ADULTS ONLY: simply fill our HOT BOTTLE with any hot liquid (coffee, tea, cider) and stick the bottle into your lunch bag along the Insulator Sleeve. This will keep your food seriously warm for up to 6 hours.   

Each order is shipped with detailed instructions. They are also listed on our HOW IT WORKS page