Rollz Flex started with a real Tuesday morning: a bakery, a deli, a green grocer, and the question of where on earth to put it all. The bag is deep, waterproof, and held on a frame that walks beside you rather than dragging behind.

The push handle adjusts in seconds for the friend who joins the last stretch. The brakes are tuned for confident stops on tile, cobble, and wet leaves. The whole thing folds flat to slide into a tram.