White Tiger of the West vambraces are medium armor gauntlets and part of the White Tiger of the West Armor Set for The Witcher 3: Wild Hunt. It was released on December 14, 2022 as part of Patch 4.0, the next-gen update, for owning or upgrading to The Witcher 3: Wild Hunt - Complete Edition.
The entire set can be found in Yennefer's room in Vizima, in a chest under a window, along with the Swords of the Nine-Tailed Vixen and the Dol Blathanna Armor Set.