SumacLife Matte Leather Workout Armband for BLU Life 8 / Pure / One M / One X / Pure XL / One / View / Pro (Black) SumacLife workout armband; Stylish, Lightweight, Durable & Comfortable Made of quality water resistant PU Leather and lined with soft neoprene Key slot for gym locker or car key // Excess headphone cord organizer slot Touch screen friendly screen guard // Touch fastener strap can be adjusted to most arm sizes