HOT Nude pumps A must-have for spring. Tracksuit pants worn with heels How else can you make them look remotely wearable outside the house? Printed scarves An easy way to experiment with some of the wilder prints out there. Cat-eye sunglasses Chic with a retro vibe. NOT Bateau stripes It's all about the military tee. Boyfriend jacket While it's still a classic, make way for an army coat instead. Short-sleeved shirts worn with a tie Unless you want to look like a serial killer. Unnatural grey hair Seems teen blogger Tavi Gevinson started this trend. That's reason enough to ignore it.