Using Continental Coins, you can give various stat upgrades (enchantments) to armor. Each time you "enchant" from the armor menu, a random amount of random effects are applied, with random values.
( https://youtu.be/RcYB4Tbt2vI )
List of all allowed armor:
Spoiler!* Improved Combined Tactical Vest
List of all stat upgrades:
Spoiler!* Recovery Rate * More Armor * Addon Dodge * More Stamina * Thorns * Protection * Shockproof * Movement Speed * Carry Movement Speed * Impulse Fields