Cushioning Armor (Armor Mastery, Combat)Source Armor Master's Handbook pg. 16
You twist in your armor, allowing it to mitigate your fall.
Prerequisites: Armor training class feature, proficiency with medium or heavy armor.
Benefit: When you take falling damage, you can direct half of the damage to your armor. This damage ignores the armor’s hardness.Source Armor Master's Handbook pg. 20 (Amazon)
You can spend 5 stamina points to utilize your armor’s hardness when directing falling damage to it. (See page 16.)