The Fortified passive reduces incoming body and leg damage by 15% in Apex Legends.
Fortified was introduced for larger Legends, initially Gibraltar and Caustic, to offset the gameplay disadvantage of their bigger hitboxes. It launched with a 10% reduction, then increased to 15% in the July 2019 Battle Charge update. Fortified also grants immunity to weapon-fire movement slow.
A common mix-up is confusing Fortified with the former Low Profile mechanic, which increased incoming damage by 5% for some smaller Legends. Another important detail is that Fortified’s damage reduction does not apply to headshots under the post-2022 rules. Newcastle later received the Fortified perk as part of his defensive identity, making the passive relevant beyond its original two Legends.