Rachel gilbert marchella dress colour : navy the marchella dress is a close fitting dress which hugs the figure. The midi dress is made from a stretch ponte fabric and has strips of raw edged, bias cut silk for added detail. The contrast beading is a mix of diamond shaped metal beads and rhinestones which are hand sewn around the neck, waist and bust area.. The dress itself is very supportive with its stretch fabric and can be worn with a bra. An exposed metal zip can be found at center back… This dress is simply stunning!!