Old upholstery doesn't have to go to waste. When Southwest Airlines removed 80,000 of its seats to replace them with lighter ones, the Dallas-based airline was left with 43 acres of old seat leather. Instead of discarding all those scraps, Southwest decided to up-cycle them into something stylish. The airline has partnered with a Portland-based company called Looptworks to turn that leather into a limited-edition series of backpacks, duffel bags and totes.