Slim-line Stirrup is one of the Horse Stirrups in Red Dead Redemption 2 (RDR2). Horse Tack can be purchased at Stables and gives player the option to customize their Horses' loadout. You might also be interested in Horse Grooming.
Slim-line Stirrup Effect
Core Drain Rage: +15%
Slim-line Stirrup Location
Slim-line Stirrup Notes & Pieces