>>8959639The trailer itself is pretty neatly assembled from all of his armored bits - his chest, head, and backpack unfold to make the roof (and his wrist gauntlets plug in behind the head, hanging from the ceiling), while his feet make up the 'doors' on the rear; what's really cool is that the blue parts that make up the sides of the trailer fold up accordion-style to make the bulky sides and rear of his boots.
The bottom of his trailer only consists of his shoulder pylons, which - as mentioned above - clip onto his cab as the primary connection point. This means that the bottom of the trailer has a huge gap in it, save for the rear section that's made up of the armored feet; combined with the head and wrist gauntlets hanging from above, it means there isn't actually enough room to store a whole lot inside (though you can fit rung in there; it ends up looking more like a prison cell at that point, though).