Motorcycle-specific winter gear is vital, and quality trumps quantity every time. Random layers from the closet will retain some warmth, but piling on too many can restrict range of motion, and if you can’t move, you can’t ride. Should you wear a leather or textile outer layer? Both have their advantages. Quality leather gear provides substantial pavement protection and can keep the wind out, but may not be as flexible or offer sufficient insulation underneath. Modern textiles are generally lighter, quite breathable and more moisture-resistant. Thanks to advances in materials technology, the best textile materials are almost as tough as leather, so it comes down to personal preference. Buy the best you can afford.