I received this Gatorade hydration booster packet for free in exchange for my honest review. Overall I really liked the tropical mango flavor, for a mix it is a little bit on the higher side for calories at 30 calories versus others that are usually around 5 to 10 calories. I used this for extra hydration after walking outside in the heat and I found that it made me feel a lot better. I will definitely buy more of these as the calories are overall relatively low for a hydration and electrolyte mix.