Philadelphia and Seattle come together for the American Trench x Crescent Down Works Band Collar Series, comprising a matching down shirt jacket and vest. Both pieces are crafted in Crescent Down Works’ Seattle factory, featuring a square-quilt pattern and weather-treated 60/40 cotton/nylon fabrication in navy blue. There’s also a ripstop nylon liner in a lighter blue shade, along with leather-backed marine-grade snaps and ethically-sourced goose down fill for superior warmth. Both the shirt jacket and vest make for excellent layering pieces, each cut in a modern slim-fitting silhouette and topped with a clean band collar.