If you asked someone what their preferred form of bottoms are, 95 percent of the time the answer would undoubtedly be denim. It's not because jeans are necessarily the most comfortable pair of pants out there (Hello, sweatpants!), but they are the one pair of bottoms you can depend on in a pinch. Take into consideration your endless options for styles, washes and fits — the dream of being able to create a thousand different looks with one single pair of pants is entirely possible. In fact, denim has come so far over the years that guys and gals are even getting away with some options at work far beyond the coveted casual Friday.