Down time clothing

[Medusa Gladiatrix]

It's highly speculative since none of the scholar have written anything about the clothing of gladiators in their free time or after training. I assume since you could keep your prize money why not buy a nice tunica or good shoes. Especially if you were an auctoratus you were kinda "slave for time" i.e. for the duration of the contract but nonetheless you could leave maybe the ludus after training or had a free day.

And in the case of a gladiatrix why not buying some nice piece of jewelry which she could not have afforded before or a nice tunica.