The Practical Defense is also known as Plate Mail +3. This is the armor of Bolhur Thunderaxe, the father of Durlag Trollkiller. It is the second best body armor available in Baldur's Gate and Baldur's Gate: Enhanced Edition, after the Plate of the Dark. It can be found in a locked chest in the master bedroom of Labyrinth Level 1 beneath Durlag's Tower.
|“||The travelling adventurer could ask for no better a suit of armor in all the land. Specially commissioned by Bolhur "Thunderaxe" at GREAT expense, this suit was his most prized, even if not his most ornate. Eminently practical, Bolhur demanded armor that would offer superior protection while hampering him in the least. By "hampering" he did not just mean in movement or weight: his ideal suit should be able to withstand the rigors of his wanderings with little maintenance. This is not to say that Bolhur "Thunderaxe" neglected his armors (to say as such would get your ears boxed) but the regime of spit and polish required for a "gentleman's" suit was beyond his caring. Save the tassels and gilding of Full Plate for kings and heads of state; a working dwarf cares more of utility than looks.||”|
In the original Baldur's Gate:TOSC, there is a Sword of Flame in this chest, not the armor.