ALL YOU NEED, ALL DAY. REALLY. Tailwind Nutrition mixes clear with water to meet all your calorie, hydration, and electrolyte needs, without upsetting your stomach or making your taste buds revolt. Just toss it in a bottle or (bladder?) hydration pack, shake, and GO! Complete calories, electrolytes, and hydration: Ditch the gels, chews, and pills, and go all day with just Tailwind Nutrition. No gut bombs: Stomach problems? You ll love Tailwind Nutrition. Tasty all day: Clean, light flavours taste better the longer you go. Hydration pack love: Dissolves on contact with water and cleans up with a quick rinse. No film, aftertaste, or science experiments! All natural: Dissolves crystal clear with no dyes, preservatives, or 4-syllable magical ingredients. 30Serve=15Hrs Fuel(200 Cal/hr) Each serving (1scoop)is 100 calories. For endurance workouts, mix 2-3 scoops per 500ml of water per hour. Adjust to your personal calorie needs during training, using hunger as a guide.