Chausses of Westfall

Chausses of Westfall are mail pants that add bonuses to strength and stamina. They are excellent pants for warriors to use. They are so useful, that if people will run you through The Deadmines at low levels, you can use these leggings from around levels 11-12 all the way to about Levels 25-26 without finding a better pair. The name comes from the word chausses, which was a medieval type of mail leggings, around 1350-1400 A.D.

Source
Chausses of Westfall are a quest reward from the Alliance quest which starts with Gryan Stoutmantle at Sentinel Hill in Westfall. To complete the quest, you must turn the following items to Gryan Stoutmantle:
 * Head of VanCleef