King of Pumpz by Zombie LabsZombie Labs King of Pumpz Zombie Labs King of Pumpz is a high stim, zero caffeine pre workout designed for athletes who want to maximise their training performance without relying on stimulants. Built around a comprehensive pump and performance matrix, this formula focuses on blood flow, endurance and mental drive, making it ideal for late night sessions or anyone sensitive to caffeine. With clinically relevant doses of key ingredients and a well