Mandalorian knee armor classic style and custom design I suggest you then use the template on Sintra material instead of Eva-foam. But if you do a search for EVA-foam templates, you might find some being offered for sale. You might need to create your own templates to get this style since I haven’t found any free post-empire templates online yet. You can still use Sintra but it might be a bit more challenging to construct. If you want to make a post-empire Mandalorian like Din Djarin or Bo Katan, most people use 3D prints. Use paper to prototype the armor shape you want, and test the sizing on your body.
You can also create your own custom armor templates if you want a different shape or style. Go here for Jango printable armor templates in various sizes. This is also the difference between light and medium class Mandalorian armor. Boba and Jango’s armor are similar in shape, but Jango has leg armor that Boba doesn’t wear. Armor templates are also available for children 3-4 ft tall. Templates are available for Jango or Boba Fett style armor in various sizes for people 5-3 to over 6 ft tall. The first step is to print off the armor templates or create your own. Now that you have your PVC board/Sintra, you can start to actually make armor!