Powerbar isomax sachets sotonic sports drink with 5 electrolytes c2max dual source carb mix caffeine and l arginine during sport you lose both water and electrolytes through sweat your body also needs electrolytes and carbohydrates in order to absorb water quickly isomax isotonic sports drink is the best choice for racing hard training sessions and rides with your must be beaten mates features carbohydrate electrolyte solution contributes to the maintenance of endurance performance