Precious Material Eden

Precious Fiber Eden (貴重な繊維エデン Kichōna Sen'i Eden) is a very valuable fiber which in terms of strength and pricing, is said to equal the likes of Adam Wood, and Eve Steel. The fibers themselves are abundant throughout the world and are manufactured to produce clothing and weapons alike, all of which are created to be light and convenient, as well as powerful, and very durable, given the ability to take sword slashes, canon-fire, temperature fluctuations, or even a tornado before the ultimately tear.

Hiro Xanthe is known to carry around and utilize a whip made from Eden Fibers, only to find out what the whip was actually made of later on his adventure. After the crew's Timeskip, Arges and Kurenai Sora had gained large quantities of the fibers, to which they would further use when the situation called for it, even remodeling the Armor of the Thunder Beast, to make it more convenient for their captain.

Trivia

 * Rukiryo first came up with this idea when he realized his main protagonist carried a weapon that would slow him down, and would altogether be a hindrance in fights, to which he came up with the idea of Precious Fiber Eden. He wanted to create something light, yet powerful, to which he read up on Jewel Ore Eve, a page created by Wyvern 0m3g4, and gained inspiration from that.
 * The name itself refers to the biblical tale of Adam, Eve, and the Garden of Eden.