Flak Jacket

The flak jacket (tactical vest) is usually worn by Chūnin and Jōnin over their normal clothes in most villages, although the design varies among the villages. For instance, the Leaf shinobi wear a green jacket, whereas the Sand shinobi wear a beige jacket and the Star shinobi wear a blue jacket. Although they are called jackets, they look more like a vest, or other similar garments. The jackets are among the most iconic pieces of shinobi equipment. Along with also being a ninja soldier icon as well. Most of them have pockets, which can be used to store scrolls and also allow a ninja to access them with only one hand, as seen with Kakashi's case when he normally does this secretly to extract a kunai.

Each village has a different versions of this:
 * Konohagakure ones have three scroll pouches on each side of their chest for scrolls, medicine, and ninja tools. For protection they include a neck guard and extra padding over the shoulders. They also come with pockets, though older ones and the ones in other villages have none.
 * Sunagakure have more versatile jackets that may or may not include shoulder padding, shoulder guards, neck guards, and scroll pouches over their stomachs, or none of these.
 * Iwagakure has a large pouch over their stomach and lower back only.
 * Kirigakure versions come with and without a neckguard, and seem to have a bit more padding over the shoulders than Konoha.
 * Kumogakure has a rather utilitarian version with its only distinctive feature being that it has only one strap to hold it in place.

Colors

 * Konohagakure - Green
 * Sunagakure - Beige
 * Hoshigakure - Blue
 * Iwagakure - Brown
 * Kirigakure - Slate Grey
 * Otogakure - Purple
 * Takigakure - Sky Blue
 * Kumogakure - White