Player > Feats > Protective Fur
Your thick fur protects you from certain environmental hazards and makes you resistant to some types of poisons.
Skittermander or ysoki.
You gain a +2 circumstance bonus to Fortitude saves against cold and heat dangers. In addition, you gain a +4 circumstance bonus to Fortitude saves made to avoid contracting contact diseases and poisons.
At the GM’s discretion, other furred races might meet the prerequisites for this feat.