Infantry Armor 1500-1525 Cologne. Infantry armors like this example were produced in quantities to outfit German mercenaries known as Landsknechte, who dominated battlefields in the early 16th century. As professional soldiers, these men were expected to equip themselves within their means. Answering the demand, armorers manufactured harnesses like this on spec rather than for a specific client. The breastplate, backplate, and splinted arms are adjustable and were designed to fit a common-sized soldier. Nevertheless, even as a piece of medium-quality armor, this harness is embellished with fashionable flutes and ripples.. Steel and leather .