Those with a career in fashion are certainly content to ride along with the whims of their contemporaries. But, perhaps in the odd moment in the stock room or pausing over your designing template, you paused to wonder, "Why do we do this this way anyway?" So here we'll have a round-up of all those fashion quirks that you always wondered about in the course of your fashion career, but never dug deep enough to explain:

Where does the stitching on the back pockets of Levi's jeans come from?
The stitching originally because Levis featured cotton-lined back pockets, and the stitches were intended to keep the lining from buckling. The color of the thread was also orange, to match the distinctive rivets. The rivets themselves were another innovation - riveted seams were a dramatic advance in work clothes technology that doubled the durability of the product. The lining was dropped soon afterward, but the stitches lived on; they had become such a distinctive part of the Levis look that the company was able to register them as a trademark in 1942.