NWT 2 pack polyester fibre Imported WIND-PROOF AND WARM: The outer fabric of the windproof full face mask is windproof, which can effectively block the cold wind from entering when skiing or riding in winter. It can be used as a full face mask. You can also remove the lower part to use as an open hood for talking and eating. Our winter balaclava is suitable for all occasions. For example, skiing, snowboarding, motorbike riding, winter ice fishing and outdoor work outings, it brings you extra comfort and warmth, and you can choose to wear it in different ways, such as a balaclava，a full-face mask, an open balaclava mask, a half-face mask, a pirate's hat.