List of Mario Tennis Open Mii gear
In Mario Tennis Open, the Mii can equip gear in order to alter his or her statistics. The gear must be bought with coins earned from the Special Games from the Clubhouse. They must first be obtained by playing matches against opponents, which unlocks a random piece of gear. Gear based off characters will reflect the characters stats. Costumes may also be unlocked by clearing certain conditions, such as Starring a character or collecting a certain amount of coins. Statistics can altered in 9 different ways, each in three categories. These are shown in the form of pie charts.
Rackets affect the Power and Spin stat.
* - reused in Mario Sports Superstars
Uniforms affect the Power and Speed Stat.
Wristbands affect the Power and Spin stat.
Shoes mainly affect the Speed stat and a little bit of Power.
The costumes can be used to customize the player's Mii character. Usually, these costumes are unlocked when the player accomplishes a task. The costumes increase the Mii's stats just as other outfits increase stats.