Mamba is a high-stim, crash-free pre-workout which also includes a fully dosed pump profile with NO3-T Nitrates, 5 trademarked ingredients including ElevATP for endurance and a transparent label. 

Mamba was created for those who want a clean, hard-hitting, well-rounded & crash-free high-stimulant pre-workout that also has a strong focus profile and a full 25 servings. - Klout Mamba