A method and system of and for releasably securing a personal electronic device to an article of clothing. A method and system of and for releasably securing a personal electronic device to an article of clothing including a holder or holster, and/or carrier for securing an electronics device to a person used during exercise and/or sports, performing manual labor, or other physical activity; and, including a corresponding rail or track system integrated into an article of clothing whereby an anchoring or attachment point may be releasably adjusted for ease of use and preferred placement of the device on the person of and by a user.