Exoskeleton is an umbrella term that covers a wide variety of use-cases. For strain-relief and augmented-strength you've got the fairly simple and thin military

Exoskeleton is an umbrella term that covers a wide variety of use-cases. For strain-relief and augmented-strength you've got the fairly simple and thin military rigs that work mechanically with a bunch of springs, sometimes a small backpack-like battery. For paraplegic wheelchair users, for example, you need an exoskeleton that fully replaces the functions of the legs: structure, balance, movement. That's much more complicated and much bigger. And the tech isn't there for consumer use, we're just starting to get there with Atlas. Beyond that you've got many wheelchair-binding disabilities that present unique challenges and require functionalities that are somewhere in between the two exos described above. A lot of wheelchair users who retain their ability to move their legs simply use braces to enhance their structural integrity and crutches for balance, but couldn't use a powered exoskeleton due to the injuries it might cause from sudden movements or ranges of motion that aren't adapted to their limitations.