Ok, that took way longer than I intended!
This time around, we got the
Type 31 Engineering Protective Jumpsuit, designed to, you guessed it! Keep you from getting killed when the consoles in engineering inevitably explode with a shower of flaming fragments and arcing electricity because Star Fleet was staffed by cheapskates that couldn't into war. Wait, wrong setting! My bad. In all seriousness though, the T-31 EPJ was designed to protect engineers while on the job. Working as an engineer on a ship is often as hazardous as it is vital, especially when enemy ships are looking to core your ship, or when enemy boarding parties scramble for your very work department. The one that happens to house hyper-energetic reactions capable of annihilating entire cities with ease. That one.
(The four images here are all that I could find however, and though I'm familiar with Blueberry, Yuzuki and Rin, I don't know who the one in the blue version of the suit is. If anyone could enlighten me, I'd appreciate it a lot.)
The Star Army realized engineers needed protection, so the Type 31 EPJ was created. This form fitting, one piece garment can be worn with or without clothing underneath, and won't snag on any corners or protruding objects when climbing through tight confines; a key, important little detail that is often forgotten. Additionally, it provides excellent protection against electrical and radiological hazards, and though not stated, I imagine the suit's weave is rated to protect against low-end fragmentation, shrapnel and spall similar in nature to what one would get from a hand grenade. Finally, the suit is, perhaps most importantly, good looking. Sporting curves and aesthetics similar to the popular plug suits of Evangelion, it's hard not to like them. For all its upsides though, there are downsides as well. Without a helmet of its own, the protection it provides is considerably reduced in effectiveness, and if atmosphere is lost, one might as well be in an AMES.
However, the very benefits of the AMES renders it unsuitable for engineering works at times, namely, the back pod getting in the way of things. The helmet itself, while useful, is also just as cumbersome when not in use too. With a few alterations however, these problems could be easily addressed with the Type 31 Environmental Protection Suit or its successor. The most important change however, would likely be a "Guild" type membrane helmet from "The Last Exile" that flows over and encloses the head when active, and when not in use, is unnoticeable and completely out of the way. An air supply for 10 minutes to half an hour, in a small, sleek container would be all this suit needs.