Lucky Leather

This +1 studded leather armor is adorned with various gemstones rather than iron studs. Three larger gemstones in the center of the chest emit a dim green light, each denoting one luck charge. A luck charge can be expended in response to being hit by an attack to force the attacker to reattempt the attack roll. Any attack can only be re-rolled once, and the second roll must be taken regardless of the result. After each full rest, the wielder rolls a d6. On a 1 or a 6, the armor regains one expended luck charge.
This armor can be worn by classes prohibited from the use of metal armor.