This pair of Zara Full Length Pants ($46) is probably the most versatile piece of clothing in my entire closet. I've never owned grey pants before owning this pair, and I truly didn't realise how grey goes with absolutely everything. This is the pair of pants I reach for the most often, whether it's for running errands or going out to dinner with my girlfriends. In order to keep these pants in the best shape possible, I wash them on delicate and hang them to dry.