With computer bags, you’re generally stuck in one of two scenarios—something slim that can’t carry a lot, or one that’s big but inconvenient when you don’t have a ton to tote around. Postal Bag ($129), new from Bluelounge, solves that issue by transforming based on your needs. Capable of holding a 13” MacBook in one orientation or a 15” MacBook Pro in another, it flips and folds, making it two bags in one.…
