They are called silks. They are how people recognize the different horses running.
SILKS
A horse!
Jockeys wear a type of clothing called silks
A horse!
Jockeys
silks
silks
what about it....... if your wondering what they are called most refer to them as "silks"
Bottles have necks but no head, and wear a cap.
silks, or racing silks.
Popeye the sailor