Drop-Crotch Pants — The phenomenon that was the loose-fit-hip/tight-fit-leg pant was a somewhat recent occurrence in '10 and '11. However, we soon learned that even women with the fittest of bods couldn't make a saggy seat look chic.
P.S. Let's not forget this scary extreme.
Shape Shifter Drop Crotch Long John, $35.80 (originally $179), available at Amélie Boutique.