Synonyms for Athletic supporter:

n.

jersey, shin pad, kit, cup, shin guard, box, leotard. •artifact (noun)
jockstrap, jock, suspensor.
•athletic supporter (noun)
jockstrap, jock, suspensor.
•support for genitals (noun)
jock, cup, jockstrap.

Other synonyms:

shin guard, leotard, shin pad. cup, jersey. kit. box. •Other relevant words:
cup.