From Pathfinder Lost Omens Character Guide, which isn't enabled.

Bouncy Goblin

FEAT 1

Prerequisites unbreakable goblin heritage

You have a particular elasticity that makes it easy for you to bounce and squish. You gain the trained proficiency rank in Acrobatics (or another skill of your choice, if you were already trained in Acrobatics). You also gain a +2 circumstance bonus to Acrobatics checks to Tumble Through a foe's space.

Pathfinder Lost Omens Character GuideOGL