Amazon has Adjustable/Drawstring Lunch Box, Insulated Thermal Bento Bag for Office/School/Picnic, Naval Stripe, Blue Yellow [Blue Stripe] on sale for 40% with code.
Use code V8W484BL at checkout for 40% off to bring final price to $6.99 or hit "Redeem" promo.
https://www.amazon.com/dp/B073XJ99ZG