Typical harness construction consists of: a grand-bascinet helm or a bicoque helmet, box-shaped cuirass, gauntlets with a long cuff and a rectangular cutout and a plate skirt known as a tonlet.
Kasten-brust armour is widely represented by paintings and statues of the first half of the 15th century.
A style featuring a sharp ridge at the apex of the breastplate first shows up in art during the first decade of the 15th century.
By 1420 a more rounded shape begins to appear in art, sometimes with fluted embellishments.
This style did not necessarily supplant the earlier style- both variety appear alongside each other in the lower left panel of the Ghent Altarpiece, which was completed in 1432.