the quintessential 5 inch run short combining nylon and spandex for increased stretch and durability compared to our 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.