An iron kiteshield is the second weakest kiteshield. It can be purchased from Cassie's Shield Shop in Falador. A player with 27 Smithing can make the shield by using three iron bars on an anvil while carrying a hammer, granting 75 Smithing experience. Players with 10 defence can wield this item.
There is an iron kiteshield spawn in the level 35 wilderness, close to the Chaos dwarfs. As this is in the wilderness (and thus near possible Pkers) this is not a recommended way to obtain iron kiteshields.