In many RPGs (D&D, for example the most famous one) They have a middle point between leather and chain, called studded leather. This could be a good armor for stealth class people, like the Ranger or later, the Thief. It could also be craftable, like normal leather, but one of the leather is replaced with an iron ingot. Here are the stats.
Boots: 175 durability one a protection point
Leggings: 250 durability one and a half protection points
Tunic (breastplate): 450 durability two protection points
Helmet: 150 durability one a protection point
So in total, you have five and a half protection points.
What do you think?