You are not only skilled at controlling a horse in combat; you can make it look like art.
Benefit: While wearing light or no armor, you do not need to make Ride skill checks for any task listed in the Ride skill with a DC of 15 or lower. You do not take a –5 penalty for riding a mount bareback. You can make a check using Mounted Combat to negate a hit on your mount twice per round instead of just once.
Advanced Player’s Guide. Copyright 2010, Paizo Publishing, LLC; Author: Jason Bulmahn.