This is the Nanamica Insulation Shirt from their 2025 Fall/Winter collection. It is an insulated shirt jacket designed for warmth and lightness.

• Made from cotton-nylon weather cloth
• Warp yarns are indigo-dyed cotton nep, and weft yarns are recycled nylon
• Insulated with PRIMALOFT® Black Insulation
• Face material: 70% Cotton, 30% Nylon
• Back material: 100% Polyester
• Front closure with snap buttons
• Made in Japan