Crystal Light Sugar Free Wild Strawberry With Caffeine Powdered Drink Mix is a deliciously fruity drink you can enjoy anywhere. With zero grams of sugar and 5 calories per serving, Crystal Light fruit drink powder is a sweet alternative to juice and soda and has 90 percent fewer calories than leading beverages (this product 5 calories, leading beverages 70 calories), so you don't have to choose between taste and calories. Each sugar free drink mix packet also has 60 milligrams of caffeine, so you can be at your best all day long.