9L Leakproof Lunchbox with Strap, Insulated Lunch Bag Thermal Cooler Bag, Black $9.99 Free Shipping.

https://www.amazon.com/dp/B073CYVJX7
I found this deal in a Facebook group. Not sure how long the coupon will last.
Promo code: TSY85NOQ
Final Price w/ code: 9.99