Shadowsilk

Shadowsilk is an extremely rare material, invented by Sam. It is created by making a minor planar rift between the material plane and the shadow plane, and then "spinning" that rift into a fine silk. It looks remarkably similar to a spider's web, but thicker and black. There are two types of Shadowsilk, enduring and fading.
===Enduring===
Enduring Shadowsilk is most commonly used as armor. It stretches over a person's body like a second skin, barely covering up the nasty bits. Because of this, it is highly useful to people who rely on agility and dexterity, as it does not impede movement whatsoever. However, the Shadowsilk is exceptionally stong as well. It has an armor bonus of 4, an Armor Check pentalty of 0, an Arcane Spell Failure chance of 5%, and does not have a maximum dexterity bonus. However, this armor takes a full 30 minutes to don. If one tries to don it hastily, there is a 50% chance that it will break. Broken Shadowsilk immediately disintigrates. It can be removed as a move action.
===Fading===
Fading Shadowsilk is most commonly used for other magical items. It is barely corporeal, and feels as light and fragile as a spider web. When worn, it naturally fits and adheres itself to the skin, but is so fragile it is as if it isn't even being worn. In daylight or artificial light, Fading Shadowsilk is invisible. In darkness, it looks almost exactly like Enduring Shadowsilk.