Check out the new InsPak P4 Carbon Fiber Vinyl backpacks for the Phantom P4/Pro. The link below will take you right to the list for the best backpack made for your drone.
Best Backpack for your DJI Phantom Drones - PhantomPak by Bestem Aerial
Best Backpack for your DJI Phantom Drones - PhantomPak by Bestem Aerial