How to make a Gladiatrix Top

[Iskierka]

Hi, I would be very glad if somebody could help me with making a top for me as Gladiatrix. I already used google and found some pictures. Some of the tops look very good but I do not know how they were made. Maybe somebody could help me and has a pattern or some hints how to make a top which stays in place during a fight. 

Thanks and best regards,
Iskierka