Get a rush of energy with ARN Harness Pre-Workout RTD - Lemon Rush! This ready-to-drink pre-workout provides the same intense energy, focus, and pump as the original HARNESS powder, but without the need for a shaker or water. With 350 mg of total caffeine (300 mg of Caffeine Anhydrous and 75 mg of Di-Caffeine Malate), enjoy long-lasting energy and laser-sharp focus in a refreshing Lemon Rush flavor that’s perfect for on-the-go workouts.