The Shadow helmet hood, with panels that protect the face and ears from wind and warm Polartec Power Stretch Pro stretchy fleece, is an extremely comfortable choice for winter sports. The material is mid-weight, and the hood is compatible with many helmets. It's a great choice for skiing, winter cycling, and other activities where you need excellent protection from the cold. - Windproof areas are made from Polartec Wind Pro fabric - Main material is Polartec Power Stretch Pro stretchy fleece - Single-layer construction - The top section can be pulled back completely if desired