First version is always a hack.

New Scientist has a 50-year retrospective about evolution of the spacesuit.

The suits were adapted from US Navy pressure suits for high-altitude flights and not designed to be worn on spacewalks.

We can see how a design, borrowed from a different application domain, over time is adapted to new tasks specific to space exploration. Now, compare this development to the evolution of the smart phone. The device is still being sold as a phone, i.e. voice communication appliance, while in the future it will evolve into a vehicle for application and data space exploration in the world of networks of networks.