Cushioning Shield (Combat, Shield Mastery)Source Armor Master's Handbook pg. 18
You let your shield absorb some of the damage from a fall.
Prerequisites: Shield Focus, base attack bonus +6 or fighter level 4th.
Benefit: When you fall 10 or more feet, you can direct half of the falling damage you would take to your shield. This damage ignores the shield’s hardness.Source Armor Master's Handbook pg. 20 (Amazon)
You can spend 5 stamina points to utilize your shield’s hardness when directing falling damage to it. (See page 18.)