In heraldry, chapé' refers to a two coloured field, divided by an inverted v which extends to the top of the field. Historically it was used in Continental heraldry, and it gets its name from the French word for mantle. It is similar to a pile inverted and per chevron, and in SCA heraldry will conflict with either. In normal usage however only the central part of the device can be charged.
There is a variant on this field division with curved lines, called chapé ployé.