The humble aluminum can gets a leak-proof redesign

Every drink has its trade-offs: Plastic bottles are lightweight and leak-proof, but they come at a cost to the environment. Cans are convenient and recyclable, but are prone to spilling. A new can design marries the best of both. ReLid USA designed a fully recyclable aluminum can that’s resealable, thanks to a patented tab that opens and closes using a built-in sliding mechanism. You lift the tab end and slide it open to drink; when you want to reseal it, you slide the tab back to its origina...