Swift Predator is a gear perk that greatly boosts your move speed after you kill an animal. It helps on hunting runs, letting you chase the next animal or get away from a dangerous one.
Kill an animal and you move much faster for a short time. Use it to reach the carcass or the next target quickly.
Wear the Bushwhacker Boots or Primal Boots in the feet slot. Gear perks are fixed to the piece of clothing that carries them, so you get this one by wearing that piece, not by unlocking it in a menu.
Predator Sense tags animals for you, and Tough Scales protects you from aquatic predators.