I've overhauled the armor UI, making it much easier to figure out exactly what is going on.
Hovering over a segment of the player preview shown on the left will display the amount of protection for that body part: Head/Chest/Legs.
I've also changed how the display works, so it shows everything as a percentage of damage reduction.
You'll also note that selecting a piece of armor displays the protection in an easy to read manner, as well as information about which areas that piece of armor protects. Perhaps most importantly, you can now see what protection a piece of armor provides before you craft it!
A few other notes. You can now wear the bandana with the riot helmet, wood helmet, and bucket helmet. I also reduced its kind of insane projectile protection from 10% to 5%, but have increased its cold and radiation protection.
P.S. The wolf headress has had its protection slightly reduced because it was kind of OP with the bandana attached.
P.P.S. I fixed a bug where the bone armor wasn't protecting the legs... oops.
P.P.P.S. There was also this weird thing going on where the arrow protection was different than the bullet protection for some pieces of armor. I've rectified this and unified them to be the same value.