The quintessential 4 in. run short combining nylon and spandex for increased stretch and durability compared to the original version. This lightweight woven fabric keeps things breezy while fending off unexpected rain showers with a Durable Water Repellent finish. A zippered back pocket for fuel, a card, and a dollar bill. A hidden internal pocket keeps your keys locked in. A reverse-stitched, no-chafe, COOLmatic|PLUS™ long liner is treated for cooling, accelerated wicking, and odour control. Stretch cargo fuel and phone pocket integrated in the brief for extra storage, designed to elevate your daily long runs.