Whether you're training for a marathon, touring cross country on your bike, or about to take on an intense workout, reach for the GU Roctane Energy Drink as a way to stay on top of your game. This twelve-serving canister mixes easily and tastes surprisingly light and refreshing while you're pushing your limits.

• Ideal for those who need calories during long or intense workouts
  
• All three flavors mix easily and have a surprisingly light, refreshing taste
  
• Exact Roctane intake depends on the intensity of your pursuit and your body weight and fitness level: the fitter your are and the more you are used to consuming carbs during exercise the more Roctane you can consume each hour, up to 340 calories every 60 minutes
  
• Caffeine (in all except grape flavor) increases mental acuity, increases performance, and decreases perceived effort, all of which tend to go south during prolonged activity
  
• Taurine combats heart and skeletal muscle fatigue
  
• Beta-Alanine and Histidine help buffer acid caused by going over lactate threshold
  
• Amino acids help prevent muscle damage and aid with muscle recovery