Allplay Lightweight Board Game Bag - Light Blue

https://www.allplay.com/board-game-bags/lightweight/

It’s perfectly sized to fit common board game boxes, the zipper lid is going to keep your games from spilling out in the car, and it’s water-resistant for when it rains or your dog drools over it with excitement at the thought of playing Bites. And it certainly doesn’t hurt that it’s supremely affordable.