Ynport Running Belt Waist Pack with Earphone Jack Outdoor Waterproof Reflective Belt Waist Bag for iPhone 6S/7/8 PLUS Universal Sports Waist Belt with Additional Extender It features small size and big capacity that it is convennient to carry personal effects when exercising outdoors.(such as mobile phone,keys,cards,cash etc.) With reserved earphone jack makes it easy access to plug your earphone to your phone or MP3,MP4. The high grade buckle and zipper is aesthetic and durable and easy to use. Made of high quality elastic waterproof material,it feels comfortable in hand and is weatproof and convenient to use. The Phosphor reflective bar can perform warning function at night to ensure safety.