I purchased this from Workman a few years ago. I wore it twice while camping. I'm selling it because I won't be wearing it anytime soon. The inside is aluminum and very warm. I was able to wear a lot of layers underneath without looking bulky. The material is sturdy, and I think it's perfect for outdoor activities like camping. I haven't worn it much, so I think it's clean, but I wore it at an outdoor campsite, so I apologize if I missed anything. Please refrain from purchasing if you are looking for perfection. I will ship it compactly. Color: Orange系 (Orange-based)