Hexagonal retroprism

The hexagonal retroprism, also called the hexagonal crossed antiprism, is a prismatic isogonal polyhedron. It consists of 2 base hexagons and 12 isosceles triangles. Each vertex joins one hexagon and three triangles. It is a crossed antiprism based on a hexagon, seen as a 6/5-gon rather than 6/1. It cannot be made uniform.

It is isomorphic to the hexagonal antiprism.

Related polyhedra
There are an infinite amount of prismatic isogonal compounds that are the crossed antiprisms of compounds of hexagons.