Pathfinder 2e Action / Feat: Elastic Mutagen

Description You can cause your body to twist and flow like the quicksilver within your mutagens. 
Applications Whenever you are under the effects of a quicksilver mutagen you created, you can stretch your legs and Step up to 10 feet, and you can squish and compress your body, allowing you to make it through tight spaces as if you were one size smaller, in addition to any effect from Squeezing.