We love it for: trail racing and everyday trail running 87% polyester & 13% spandex rabbitKNIT back panel & brief liner: 87% polyester & 13% spandex Super lightweight & quick-drying Semi-relaxed fit Flat waistband Internal drawstring Pockets: Back reflective zip fits most phones 2 side stash fit small soft flasks 2 back stash & back internal fit keys or nutrition 7” inseam Machine wash cold, tumble dry low, don't bleach, mmkay? Designed in California, made abroad