1st C apron attachment peculiarity?

[Crispvs]

I sometimes wonder whether the apron might have been a removable item. Although numerous soldiers are shown with them on stelae and certain public sculptures, other sculptures showing soldiers in action, such as the Mainz column bases and the Adamklissi metopes do not feature them.

Mike's article mentions three types of apron: those somehow attached to the back of the belt ad passed over to the front, those attached somehow to the belt and passed under the belt and those made from the excess material of the belt end.
Now, obviously the type consisting of the spare material of the belt end would be difficult to create in a form which could be easily removed and re-attached, but the 'passing over' type could be achieved with a tube of leather with the belt passing through it. This tube could be achieved by having a roughly square pice of leather at the top of the apron which was folded over and sewn into a tube. The 'passed under' type could be hooked or laced into position somehow. Not good for the rigeurs of battle but certainly good for swaggering about town. If this last suggestion is a possibility then might this be what we are seeing on Largennius' stele?

Crispvs