During those icy months in cold climates conditions can be treacherous. It's not uncommon to do a butt plant (or face plant if you're not so lucky). Special grips and cleats can be added to your winter footwear to provide winter traction, but they're not exactly the most practical solution.
When it's a dreary winter or spring day out there, and you're hiding under the cover of an umbrella - there's little else to demonstrate you're fashion personality. Brighten up a dismal day with an accessory the adds a little pop of color in response to in climate weather.