A Kipchak Balbal, 12th century
Hermitage Museum, St. Petersburg, Russia

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Photo by sailko

Note the straps holding up the boots have garters attached to them above the knees.
A Kipchak Balbal at Luhansk, 11th century
A stone Balbal in: Tamara Talbot Rice, Ancient Arts of Central Asia, 1965

See also A Cuman Cavalryman from Armies and Enemies of the Crusades 1096-1291 by Ian Heath
A Cuman Cavalryman from Armies of Feudal Europe 1066-1300 by Ian Heath
Index of Illustrations of Costume & Soldiers