Now that I think of it ... it is not technology that gets my goat ... it's fashion.
Medieval bras ... BURN THOSE ABOMINATIONS!
The "Anti-bra" ... common on a number of minis. Can't suspend disbelief! They can't work!
The bicini ... a 20th century fashion statement ...
The chain mail bicini ... Fredricks of Hollywood perhaps, but not on any real adventurer.
Technology is an interesting subject. There is a reason why we didn't see a 1st century space age. The Greeks thought, for the most part, that the practical sciences were beneath them. The Romans were too practical to do any advanced scientific research.
Consider that mechanical methods for determining time in Europe wasn't really advanced until Christian monks wanted a way to pray at precise intervals in the middle of the night. Technlogical advancement doesn't just happen for no reason, but because some group wants to do something odd and will work at it until they find a way to make it so.
Some things became mere novelties, but never got beyond that stage because there was no practical reason given other constraints. Wheels, for example can be found on Mayan pull toys, but since it was easier to run through the exceptionally hilly landscape, carts were not developed. Steam power is anothe example. It wasn't until someone did the math by observing how much heat water could absorb in the process of drilling canons that a major effort was made to really harness steam power. Until the 19th century most steam engines barely did the work of a horse or two.