Like geometry?  This is for you.  A double-sided wool/rayon blend, black with white little rectangles on one side; off-white/light grey with little black rectangles on the other side.  Use a pattern that allows both sides to show for a distinctive look or use one side for accent pieces of the garment.  Make a jacket, vest, or top from this light/midweight blend. 

Double-sided wool/rayon blend

60" wide