This is a General Research casquette. The material is wool. It has a sax navy border pattern. It's a very rare item, and I've never seen this color on Mercari or auction sites. It's a new, unused item that I only tried on when I bought it a long time ago. If there are any enthusiasts or people who have been looking for this, please consider it. I'd be happy if someone used it. Mountain Research Undercover Cap Hat Color: Blue系 (Blue-based) Stains, tears, odors, etc.: None