A Classic Black Dress: Enza Costa Tencel Cashmere Rib Midi Dress You'd get a lot of mileage out of this Enza Costa Tencel Cashmere Rib Midi Dress ($365), because you can dress it up for a date or keep it cool and casual for the office or to run errands. Trust us, you'll turn to it season after season. Image Source: amazon.com Enza Costa Tencel Cashmere Rib Midi Dress $365 from amazon.com Buy Now