• Shadowstep Striders
• Item Level 110Disenchants into:
  [Void Crystal]: 1-2
• Binds when picked up
  
• Leather
• Feet
• 240 Armor
• +31 Agility
  +30 Stamina
• Durability 60 / 60
• Requires Level 70
• Equip: Increases attack power by 54.
• 
• Sell Price: 4 40 54

Source

This item drops from Harbinger Skyriss in The Arcatraz on Heroic Mode.

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB