The uniform the Star Army uses for physical activities consists of a white ringer T-shirt and a bikini swimsuit bottom with the Star Army of Yamatai logo on left leg. It is worn with white socks and (if planetside) white shoes. The current version was introduced in YE 29.
The swimsuit is merely the exercise uniform with the shirt removed. The standard-issue black sports bra doubles as a bikini top. Males are issued black swim trunks instead of the bikini bottom.
An older version of this uniform featured a black T-shirt (with pocket) and black socks; It was standard issue from YE 27 to YE 29.
The shirt is available: Cafepress's Star Army Store.