You can’t get a better cap today than one of those being made by Conor Timoney.  They are simply the closest reproductions of the originals in every way, bar none.  And the price can’t be beat too.  These caps are copied from an original commercial kepi with unbound leather brim and come complete with a matching rain cover--an item very often seen in winter images in particular but rarely used by reenactors.

Commercial Kepi with Rain Cover - 2nd N.H. - SOLD OUT