Carhartt 12 Can Two Compartment Lunch Box | Durable, Fully-Insulated Lunch Bag for Women & Men, Large Lunchbox (Black)

I use this: https://a.co/d/0aNQ4mTb But, I travel with an XL and a Timemore S3 grinder which fits in the plunger, a Fellow 0.7 liter jar for beans, a mini-scale, extra box of filters, and an Owala 12oz tumbler which all fits neatly inside as well as the regular tools like a scoop, brush for the grinder, etc.