Navy flight cap with earflaps, very warm. The outside is a felt-like wool-like material (labeled as polyester), and the inside is boa, which is fluffy, soft, and pleasant to the touch♡ Please use it for mountain climbing, cold regions, and outdoor work. I took it with me when I went to a cold country once, but it wasn't cold, so I hardly used it. I hope someone will use it a lot! - Color: Navy - Material: 100% polyester - Design: Flight cap - Features: With earflaps - Inner material: Boa - Style: Classic Thank you for viewing.