From liveauctioneers.com/item/25552147_lucile-studio-fashion-sketches-circa-1916-two-signed; doubled size.
Lucile uses a striped veil as an accessory to a brimmed hat. The rest of he ensemble is a jacket and a two-tiered skirt. Alternatively, there could be a skirt and a pair of pants below - either could work.
Keywords: 1916, Lucy Duff Gordon as designer, Lucy Duff Gordon, Lucile, Lucy Sutherland, Lady Duff Gordon, brimmed hat, veil, jacket, high neckline, collar, three quarter length full over-sleeves, turned back buttoned cuffs, long close under-sleeves, cuffs, buttons, pockets, midi-length close over-skirt, maxi-length tight under-skirt, shoes