The Armorer is gruff, sporting a rough haircut and beard and muscular arms. He wears a green shirt, trousers and gloves and a brown apron. He usually stands on a stool to compensate the short lengths of his legs compared to his arms.
In Shovel of Hope, the Armorer can be found in the Aerial Anvil at the Armor Outpost. He sells different suits of armors which Shovel Knight can purchase. He also offers the knight to hold on any of his purchases, so he can change them here. In New Game Plus, the Goatarmorer also offers this service.