Pattern: Clefthide Leg Armor

This pattern teaches Leatherworkers to craft Clefthide Leg Armor. To learn the pattern, you must have a leatherworking skill of at least 335.

Source
The pattern is available from Fedryen Swiftspear in Cenarion Refuge for.

To purchase this pattern you must be Honored with Cenarion Expedition. The pattern is Bind on Pickup.