|Bocksten Tunic 14th Century, |
|Tunic of Dona Teresa Gil|
1307 Museo del Traje
Having a seamstress background I would take these gussets one step further and cut them on a bias, while there may not be evidence of this being done there is evidence of bias cutting. Hose were known to be bias cut so there was knowledge of the stretch that the bias could offer. So maybe just maybe some crazy sewer in the 14th century came to the same wild conclusion I did.
Demo to come.