UK packaging start-up Kvatt has partnered with fellow British clothing brand Toast to trial reusable e-commerce mail bags, aiming to reduce single-use packaging waste. Gianfranco Bächtold, founder at Kvatt, says: “Through our service, a Toast item is delivered in a returnable mail bag with instructions. You attach the prepaid label on the back, drop the empty packaging in any post box around the country, and it returns to our system.