Chic Black Open Abaya with Mint Green Geometric Pattern

As a buyer, I'm drawn to the sophisticated, dark color palette and the way the black fabric drapes—it looks very flattering and comfortable. The open-front design makes it easy to layer over various outfits, which is a big plus for versatility. I particularly love the contrast provided by the mint green/teal and gray patterned fabric on the lower sleeves and the hem; it adds a modern, artistic touch. Is this piece made of a thick material suitable for winter or a lighter fabric for year-round wear? Knowing the exact fabric blend (e.g., knit, crepe) would be helpful. Also, what are the care instructions, and does it come with a matching belt or closure mechanism? This looks like a great addition to a modest wardrobe for both office and casual settings.