Because you probably can't just wear pants. The Jackie is relaxed fitting throughout and is slightly cropped so you can show off your midriff. It's made of stretchy ribbed fabric so it's easy to throw on and go. The Jackie Knit Top pairs well with the Wilder High Rise Wide Leg Cropped Jeans - Bra friendly - Crew neck - Easy fit - Long sleeve - Slightly cropped *in excellent condition* **sold out at reformation online**