This consists of a few chitin plates protecting the shoulders, head, and abdomen, supplemented by bone at the forearm and shin. This chitin is usually that harvested from the scorpions of Xen'drik but there are other varieties available; such as the chitin of monstrous crabs found among aquatic and coastal areas or among the Sahuagin.
Cost: 20 gp
Armor Bonus: +2 Maximum Dexterity Bonus: +7
Armor Check Penalty: –1 Arcane Spell Failure Chance: 5%
Speed (30ft): 30 ft. Speed (20ft): 20 ft.
Weight: 10 lb.
Source: Races Of Eberron