What is the protection for the male genitals, worn especially by sportsmen called?

The jock strap is only the outer fabric garmet that holds the "cup" which is the actual protective gear.

the cup made of hard impact plastic or military Kevlar so you don't get castrated by an individual or rounds.

I Like it when guys strap them on. Helps the package have better curb appeal.

Jock itch

Howzat for an answer