Kroks

 are boots and part of the Harpiset Set.

Obtaining

 * Crafted by a Tailor (Lv. 100) from
 * 36 Crushmore Claw
 * 33 Ickyrus Talon
 * 15 Dimensional Fabric
 * 15 Tourmaline
 * 15 Miniature Sandglass
 * 12 Ougaa Eye
 * 10 Vortex Wing
 * 10 Klime's Moustache