To protect yourself against the cold, you can choose to wear a cap, scarf and/or hat. A cycling cap protects your head against the cold and your eyes against the sun and rain. If you want your head to stay warm but are not too keen on a cycling cap, you can choose a hat or skull cap. Some models are even wind- or waterproof. And another must-have for cold days is a scarf to keep your neck warm while cycling.