I love this attaches to the side of the wagon and doesn’t interfere with the space in the basket or extra seat. Even tho I only have one child in the wagon, he does like to extend his legs across to the other seat so putting items there wasn’t an option. This cooler and the larger size is amazing because you can buy the adapters and raise the larger cooler for the longer sporting days. If you’re debating buying this, do it!! You won’t regret it. And it’s also a perfect lunch size cooler when not in use with the wagon.