Rocket Boots Xtreme Lite

Source
The Rocket Boots Xtreme Lite is crafted by Engineers with a skill level of 355. These are BOE and require skill level 330.

The components are:
 * 8x Bolt of Netherweave
 * 2x Khorium Power Core
 * 2x Hardened Adamantite Tube
 * 4x Felsteel Stabilizer

The drops off  in the Mechanar.