Each armor has its own style and what comes with it is usually some unique features.
Strapped
You have free hand when using this shield.
Deflect
If you have Shield Combat talent, the die you roll when performing a Block Reaction increases by one size.
Bludgeoning Vulnerability
This armor does not protect well against Bludgeoning damage type which reduces Damage Reduction by 1.
Piercing Vulnerability
This armor does not protect well against Pierce damage type which reduces Damage Reduction by 1.
Sturdy
If you have no Guard Points left you can perform Armor Block. You reduce the damage by 2 to a minimum of 1.
Noisy
You have Disadvantage on all Stealth checks.
Hindering
You have Disadvantage when performing skills from Acrobatic and Survival skill groups (except Track). Your movement speed is also reduced to 6m.
Partial Hindering
You have Disadvantage when performing skills from Acrobatic and Survival skill groups (except Track). You can remove this effect if your Strength is 2 points higher than the required value.