Polyester fleece, wool, or down work well here. Look for breathable jackets and pants that allow moisture from your body to evaporate, but prevent wind and rain from entering (for example, those made of GoreTex). Remember, cotton is not a winter-friendly fabric, and that also applies to socks. Avoid blisters and soggy toes by choosing fabrics such as drynamix or mohair.
And forget what we said about layers when it comes to socks, a good layer is better than several (less is more). And look for water resistant shoes or boots to minimize the risk of getting wet feet. Insulated outerwear offers great insulation and is therefore a good choice when it's cold and low-intensity activities. The temperature can easily reach zero during the autumn and winter months, depending on where you live.
If you're going to stay warm in the stands, you should keep your fingers, toes, and head warm. Gore & Associates, the creator of Gore-Tex, Activent, Windstopper and other technical outdoor fabrics, and Patagonia, a manufacturer of high-quality outerwear for serious skiers, skaters, runners and climbers.