This depends on the size and style of backpack you have purchased and what you need to carry with you on your journey. Most motorcycle backpacks are suitable for carrying at least your essentials, including phone, license, and other driving documents, wallet, keys, a change of clothes, shoes, or a spare helmet. Check the capacity and dimensions of the backpack before you purchase it to ensure it will fit everything you need. Larger electronic devices should only be carried in your motorcycle backpack if it is designed to hold them safely and securely. Such a backpack will have additional internal padding or a purpose built pocket specifically for carrying a laptop or iPad. Check the size of that pocket or padded area before you buy.