The Fenix AFB-10 is not your ordinary fanny pack! Designed with comfort in mind, the AFB-10 is lightweight, soft, and extremely comfortable to wear. The storage capacity can be expanded to store your phone, keys, change and other items up to 7.2 inches in width. To protect your personal items, Fenix designed the AFB-10 with a TPU waterproof layer inside and a waterproof zipper on the outside. Additionally, you also have the option of using the headphone hole that is discreetly hidden on the pack. Use the AFB-10 can also be used at night safely thanks to the reflective Fenix logo that will serve as a warning to oncoming joggers and runners.