Heavy Poison Protection is a trade-off gear perk that greatly improves poison defense but slightly slows stamina recharge. It is built for toxic areas and poison-firing soldiers.
Poison hurts you much less, but your stamina takes longer to refill after sprinting.
Good for areas with toxic hazards or enemies using poison. Otherwise a general defense chest perk is better.
Fire Saboteur on the Decontaminant Leggings adds more poison and fire defense.