Thermos 1.39L Stainless King Big Boss Insulated Food Jar


Out of stock

Going on a weekend hike or just stuck at the desk for work? Take your lunch with you, packed fresh in this 1.39L Thermos Stainless King Big Boss Food Jar. Its double-walled body and matching lid help retain proper food temperature, so your soup stays warm or salad cool for hours. The wide mouth opening of this durable food jar also makes food easy to enjoy in small or big bites.

There’s a reason why this food jar is called the Big Boss! There’s plenty of room for your food and it boasts a wide mouth opening for easy use. And the double-walled construction keeps food hot for up to 10 hours or cold for a whole 24 hours.

It’s perfect for so many occasions. If you’re planning an outdoor adventure, you’ll appreciate the built-in carry handle with a comfortable rubber grip. You’ll also love the durable stainless steel construction inside and out. The Big Boss is your ideal solution for days out and is great to take to work or school.

The Big Boss includes two BPA-free food containers that are safe for the microwave and dishwasher. This finishing touch makes your lunch preparation so much easier.


  • Thermos™ vacuum insulation technology for maximum temperature retention, hot or cold
  • Durable stainless steel interior and exterior
  • Stopper design helps equalise air pressure to assist in easy removal
  • Wide mouth is easy to clean and eat from
  • Cool to the touch with hot contents, sweat-proof with cold
  • Rubber grip is comfortable to hold and carry
  • Includes 2 separate BPA-free, microwave and dishwasher safe containers
  • Keeps hot for 10 hours
  • Keeps cold for 24 hours


  • Colour: Stainless Steel
  • Capacity: 1.39L
  • Weight: 1.16kg
  • Material: Stainless Steel
  • Width: 155mm
  • Height: 231mm
  • Length: 135mm
  • Cleaning: Wash with warm, soapy water


5-year warranty applies to vacuum insulation. Spare parts (e.g. lids, o-rings, stoppers, etc.) are available from the manufacturer.

Product Type

Kitchenware > Outdoor Kitchenware > Storage > Canisters & Food Jars

Shipping, Delivery & Returns

Ronnie John accepts all major credit/debit cards including Visa, MasterCard and American Express. PayPal and Afterpay are also available.

We endeavour to process orders within 1 business day.

Standard Delivery

Standard delivery to metropolitan areas generally takes 2-5 business days after shipping.

Standard delivery to rural areas may take longer. (Please allow up to 10 days delivery for remote rural areas).

For more information visit:

Free Shipping

Our free shipping offer is applied at checkout for purchases valued at $150 or over.

This promotion cannot be applied to historical orders or to orders that have been adjusted.
Free delivery is valid for Standard Australian ground shipping only.

Express/Priority Shipping

Express shipping is available at an additional charge.

Express shipping to metropolitan areas generally takes 1-2 business days after shipping.

Express shipping to rural areas may take longer. (Please allow up to 7 days delivery for remote rural areas).

Express shipping options can be selected at checkout.

Where do you ship to?


How can I track my order?

Tracking information is sent via email on the day your order has been shipped.

Australia Post tracking URL is:

Do you deliver to PO Box Addresses?

Yes, as long it is an approved parcel delivery PO Box. Please check with your provider.

What happens if my items get lost in transit?

Please contact Australia Post and quote your tracking number that was sent to you in your shipment confirmation email. If the carrier can’t locate your items, we’ll lodge an enquiry on your behalf.

Please contact us if you have any queries regarding your delivery.

How can I contact Customer Service?

Via the Contact Us link on our website, or you can email:

Returns and Exchanges

Ronnie John does not offer refund or exchange for change of mind. If however, you are not satisfied with your purchase please email within 3 business days of receiving your item/s. Please include your order confirmation number and the reasons why you are unhappy with your order.

If you receive an item that is proven faulty, damaged or not what you ordered, Ronnie John will happily exchange or refund this for you, free of any charges.

Faulty or damaged product is to be returned to Ronnie John for inspection prior to receiving a refund or exchange. Please email for return address information.

If your parcel is unable to be delivered due to incorrect information provided by you, or you have failed to collect your parcel from your local post office or delivery centre, Ronnie John is not liable for the re-postage of your order.