The Ashigaru Shirt is a generic dark-colored Gi, available for female characters in Character Creation in Soulcalibur IV and Soulcalibur V.
Soulcalibur IV[]
This top raises Gauge by 35, Defense by 10, and HP by 25. It is unlocked at the start of the game.
Soulcalibur V[]
The Ashigaru Shirt is available at the start of the game.