Materials: Lycra with TPU + PVC                                                                                Elastic lycra waist bag with TPU coating+ adjustable elastic belt + buckle+ earphone hole+operable PVC window.  Expandable, light weight, secure, low-profile pocket, suit for all. Comfortable, soft and light weight,will not bounce. Sturdy buckle and glides for even the most active users.  Can operate your phone with out taking it from the bag, very convenient for sports.  M for iPhone 6 and similar phone, L for iPhone 6 plus and similar phone.