Who's not looking for tricks to keep their cool cred in check when it's cold outside? Layers feel like they're swallowing your style mojo, right? All it takes is some subtle sleeve rolling: show off what lies beneath your winter coat by making your top's sleeve a feature, like this street styler at the menswear shows in London this week. Plus a cool necklace will make a major style statement worn over a turtleneck. Not so hard, huh?