ThinkTank released their new Retrospective bags that might be an attractive solution for Leica shooters (I am thinking of Leica M), especially the Retrospective 10 and Retrospective 30 models:
ThinkTank Retrospective 10 (Pinestone)
ThinkTank Retrospective 30 (Pinestone)
I especially like their “sound silencers” that suppress the loud tearing sound hook-and-loop makes while opening and closing the bag:
"sound silencers"
Both versions are also available in black.
