This is a fun double cover I did for Detective and Batman Annual.

DETECTIVE COMICS ANNUAL #12
Written by DAVID HINE
Art by AGUSTIN PADILLA
Cover by STANLEY “ARTGERM” LAU
What starts as a Batman, Inc. recruitment trip soon turns into an international incident as The Dark Knight encounters a string of bizarre murders in Paris, France. Featuring both Bruce Wayne and Dick Grayson as Batman, this extra-sized spectacular guest-stars The Question and spotlights the debut of a new Bat-ally!
In part 1, Bruce, Dick and Renee Montoya are presented with a series of cryptic clues, which lead them to the underground catacombs of Paris — and the most unexpected of assassins! Continued in this month’s BATMAN ANNUAL #28!
On sale DECEMBER 8 • 56 pg, FC, $4.99 US
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BATMAN ANNUAL #28
Written by DAVID HINE
Art by AGUSTIN PADILLA
Cover by STANLEY “ARTGERM” LAU
This year’s Batman annuals collide in a 2-part story involving both Bruce Wayne and Dick Grayson as Batman! In this second part of the story, when a Batman, Inc. recruitment trip to Paris, France leads to a murder mystery, the heroes deduce that the assassinations are connected to a strange cult leader. But will this religious figure take them one step closer to solving the bizarre murders? Or are The Question, Bruce and Dick getting one step closer to becoming the next victims?
Continued from this month’s DETECTIVE COMICS ANNUAL #12!
On sale DECEMBER 22 • 56 pg, FC, $4.99 US
this article has a couple references to the arc directly after dick dons the cowl and has some in comic images not just covers. I haven't read much of them yet but most of the pics I've seen over the net that buckle is the most common element. it's also hard to tell with DC using different artists alot for not only covers and inside work but from issue to issue.
There are probably issues where he sports that, but given the amount of images I've seen just searching "dick grayson batman" having that buckle that would be my best guess. It's not 100% but it's the best I got ^^ (PS. this has been bugging me as well and I too wish we had artgerm or an official artist's input)