From Pathfinder Lost Omens Legends, which isn't enabled.

Applereed Mutagen (Lesser)

ITEM 4

RARE ALCHEMICAL CONSUMABLE ELIXIR MUTAGEN POLYMORPH

Price 20 gp

Usage held in 1 hand

Bulk L

Category mutagen

This gummy liquid disproportionately lengthens your legs, causing you to grow but making your movement awkward. The effect is very noticeable unless your clothes can adequately conceal it.

Benefit You gain a +2 item bonus to Athletics checks and you gain a +10 foot status bonus to your Speed. In addition, you grow one size larger, but your larger size does not have any additional effects beyond the potential change in space.

Drawback You take a -1 penalty to AC and a -2 penalty to Reflex saves.

Duration 1 minute.

Effect: Applereed Mutagen (Lesser)

Pathfinder Lost Omens LegendsOGL