Relwen took inspiration from the sturdy, sporting design of classic polo shirts when building this go-to insulated layer. The flexible nylon shell, breathable insulation, and soft mesh liner are stitched together into one, streamlined layer to keep things simple and long-lasting. Black oxidized hardware and a buttoned flap pocket balance out polo-inspired details like the ribbed cuffs and split-tail sideseams. It’s lightweight and packable, as you’d expect—but has a heritage look with more range than a standard puffer.