As a very practical item, there are many different styles and forms that bags can be. Kev and Jack break down some of the different types – from the school days (backpacks, string bags, rolling bags) to the travel bags (duffle bags, luggage situations) to the everyday bags (plastic back in the day to now, reusable, tote bags, IKEA's classic blue bag) to Kev's take on one that's been teased since the teaser of this show (fanny packs).