Who says bicycle helmets are for the tragically unhip? Not mod British designer Paul Smith. His very hip new Paint Stripes helmet ($23, in stores) sports his signature crayon-box hues and slick contours reflective of skateboard culture. Here’s another mock-up Paul was working on with helmet makers Giro earlier this spring. Good luck finding one of these online, though; they look to only to be in stores for the time being.