This is a dress with a keyhole neck that will fit most humans, but looks best on average adult females. It was made with the Blender cloth sim, sewing springs for the fit and regular cloth for cloth-like folds. Recommended modifiers: Solidify (.1 in/.25 cm, -1, only rim) and Subsurf (1 will do, but 2 is better). Eight additional materials are available in Materials.
CC0 - Creative Commons Zero