SF: Agility of the Small

...

Agility of the Small	You are fast for your people. Increase your base Movement by 5 feet., and you gain proficiency in the Acrobatics or Athletics skill (your choice). Starting at 5th character level, you have advantage on any Athletics or Acrobatics check you make to escape from being grappled.
Prerequisites Dwarf or a character that is always Small or smaller.