White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
About this Product
Please see the video--these are the 'back pack' only parts from the video, allowing you to twist the Blackbird cockpit and gather the wings to make a backpack.
Note: some disassembly of Blackbird is required to install the swivel part--a couple of screws and one pin. Luckily, the pin appears to be easily removable using a very small screwdriver or allen key.