This couple invented a clever piece of luggage so you'll never have to check your bags again - here's how it works

Over the past two years, Johnathan Webster has taken nearly 60 flights and successfully avoided one particular bane of airline travel: checking his luggage.

Both Webster and his wife, Gizem Mut-Webster, have pointedly evaded checking in luggage on flights ever since they backpacked through Europe in college. As students traveling on a restricted budget, they took issue with the stringent bag policies and punishing luggage fees enforced by many airlines. Instead, they began to brainstorm a clever solution: What if they created a luggage brand that not only looked sleek, but could defy airline bag policy?

The result is Wool and Oak, a two-year-old company that creates stylish, modular luggage with the explicit intention of eluding airline bag policies. The brand's most recent product, which debuted on Tuesday, is a two-part duffel backpack that can neatly be disguised as single carry on item.

Here's what it looks like, and how it works: