Brigandine

Brigandine is a recurring armor in the series, oftentimes providing decent defense and appearing as a mid-ranked armor, usually either midway or late through a game.

Final Fantasy IX
Brigandine is a mid to high-ranked armor that only Zidane and Amarant can equip. It costs 4300 Gil to buy, and provides 20 Defense, +1 Strength, and teaches the abilities Ability Up and Return Magic.

Final Fantasy XII
Brigandine is a mid-ranked armor that requires 25 LP and the Light Armor 5 license to use, and can be bought in several locations for 2500 Gil. It provides +160 HP and +18 Defense.

Final Fantasy Tactics
Brigandine is a low to mid-ranked armor that provides +50 HP and costs 2500 Gil to buy.

Final Fantasy Tactics Advance
Brigandine returns as a low-ranked armor that provides 37 Defense and 6 Magic Resistance. It teaches the Counter ability to Thief and White Monk.

Final Fantasy Tactics A2: Grimoire of the Rift''
Brigandine is a low-ranked armor that provides 33 defense and 6 Magic Resistance, as well as teaching the Red Mage and Juggler the Sticky Fingers ability.