Armband is made of the highest quality soft neoprene and lycra blend that is made to flex, twist, and bend, but not stretch out of shape. It can stand up to the toughest of workouts and marathons. The Tribe Comrade Armband is ultra lightweight (1.5oz) for speed and comfort during all activities. Our armband offers full screen protection, yet you will retain full touch screen functionality. It also features full headphone jack support for Apple and Android phones.