This is a Body armor made out of knex. It was meant to look like a SWAT armor. You can move propperly in it.
Step 1: The Shoulder Straps
Make these things. Connect them as you see on the photo. And repeat this to make the straps longer.
Step 2: The Belt
Make as you see on the photos the belt longer.
Step 3: Other Parts
this are some photos from different angles and photos of the armor plate