Bokken, Drawing tube (ask Rob), Obi (recommended) or Karate belt and/or Gung Fu sash (in place of obi),
Kendo Gi top white (recommended) or Karate Gi (in place of Kendo Gi top), Hakama black (recommended) or Karate Gi pants.
Historically, the samurai of Japan used Iaido as a fighting method. They were trained to draw their swords and battle their opponents using the quickest and most efficient moves possible. Attention to detail and accuracy were strongly emphasized as the smallest of mistakes could be fatal.
The origins of Muso Jikiden Eishin-Ryu (Peerless, Direct Transmission, True-Faith Style) can be traced back 450 years to Hayashizaki Minamoto Jinsuke Shigenobu (1546-1621) who lived in present day Kanagawa-ken which Kamakura is a part of. He was born in Yamagata-ken, Murayama-shi, Tateoka located in northern Japan. It is said that he wanted to avenge the death of his father and was inspired to create Shinmei Muso-Ryu (Divinity Inspired Unparalled Style) while praying for guidance. Hayashizaki Soke is enshrined at Hayashizaki Iai Jinja the shrine in which he prayed.
Over the last 450 years this style has evolved and has been passed down to different Sokes or Headmasters in charge of maintaining the integrity of the style. The current and 22nd Soke is Ikeda Takashi Seiko Sensei.
Today, Iaido is taught as a series of small forms or katas. Attention to detail and accuracy are still strongly emphasized. However, modern day students develop these qualities not to prepare for the battlefield, like the samurai, but for their own personal and spiritual development.