abjuration 

Traditions arcane, occult

Cast [>>] somatic, verbal

Duration until the next time you make your daily preparations

You ward yourself with shimmering magical energy, gaining a +1 item bonus to AC and a maximum Dexterity modifier of +5. While wearing mage armor, you use your unarmored proficiency to calculate your AC.

Heightened (4th) You gain a +1 item bonus to saving throws.

Heightened (6th) The item bonus to AC increases to +2, and you gain a +1 item bonus to saving throws.

Heightened (8th) The item bonus to AC increases to +2, and you gain a +2 item bonus to saving throws.

Heightened (10th) The item bonus to AC increases to +3, and you gain a +3 item bonus to saving throws.

Core Rulebook, page 348.