I ALWAYS have these skiing, biking, hiking, trail running, basically anything that involves me doing physical activity away from infrastructure. They're great when you need a little bit of food energy and can't get to any or don't want to fill your stomach. I like the black cherry flavor with a bit of caffeine for an extra boost, but there's lots of flavors and they're all good (with the notable exception of Margarita, that one is super gross).