From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Trackless

ITEM 6

Price 225 gp

Usage applied to footwear

Bulk —

Trackless runes are common among hunters and trappers, as well as thieves and anyone fleeing pursuit. While wearing trackless footwear, you have a +4 item bonus to the DC to track you. However, this bonus doesn't stack with the status bonus from Vanishing Tracks.

Pathfinder Treasure Vault (Remastered)ORC