From the manufacturer: Unparalleled in design and workmanship, the RCP-1 Pro radio chest harness comes loaded with all the bells and whistles. Perfected over time from customers' feedback to become the most comfortable and functional radio chest harness anyone can wear. The RCP-1 Pro radio chest harness works great with or without a backpack. When wearing this unit with a backpack you can either use the supplied torso straps or purchase the Harness Converter Kit. The Harness Converter Kit allows you to attach the RCP-1 Pro to the shoulder straps of any Coaxsher backpack. iPad mini with protective case fits into the large main pocket. More technical specs and features can be found on the manufacturer site: https://www.coaxsher.com/Radio-Chest-Harness-p/rp202.htm Minor scuffing.