Coat of Many Colors

As per the Mage Armor spell, an unarmored willing creature is surrounded by what looks like a translucent coat of swirling colors until the spell ends, is dismissed or dispelled. The target's base AC becomes 13 + its DEX modifier along with half DR to one chosen damage type for the duration. (Acid, Cold, Fire, Lightning or Thunder) 

 At Higher Levels. When you cast this spell using a 5th level spell slot, the target's base AC becomes 14 + DEX modifier with full DR to one chosen damage type and lasts 6 hours. If cast using an 8th level spell slot, the target's base AC becomes 15 + DEX modifier with full DR to 2 chosen damage types and lasts 8 hours.