I don't have matches, but I do have a electronic lighter and a small folding knife... they both fit inside the wallet.<br>Along with a signal mirror, first aid items, a mini fishing kit (also on an old credit card)... etc.<br>It isn't as small as a altoid tin, actually half again as thick... but I gain access speed... which for me is a fair trade off.<br>As for stiffness... the knife, lighter, and mirror keep it unbendable.<br>One thing I have noted, it's not water proof- but I don't carry anything in it that would be hurt by water.