Choose the surface that supports the shape.
The shell material influences how the bomber hangs and how its panels hold the intended volume. Discuss texture, sheen, hand feel, weight, and structure rather than using a broad material label alone. A matte woven direction and a smoother, more reflective surface can create very different brand impressions.
Review the shell in the actual garment construction. Lining, seam choices, and any added insulation can change the result from what a loose swatch suggests. If you want a weather-related performance claim, state it separately at enquiry stage. A technical-looking shell is not by itself evidence of water resistance or other protective performance.