short story involving symbiotic space suit and a war against aliens

I’m trying to track down a short story that I read from my high school library in the late 80s, it would have been from one of the many short story paperback collections in circulation at the time.

The plot involved a female soldier involved in a war in deep space against a formidable alien species. The woman has a space suit that is like a symbiotic partner that helps her survive in hard vacuum, it uses photosynthesis to feed her and the story presents the protagonist as almost being an alien herself. The suit had the ability to change shape which helped her fight in space and I vaguely recall that the feet turned into almost alpine ski-like appendages.

At the time I was devouring short stories featuring work by Pohl, Bear, Card and many others but I can’t find a match.

That’s about all I can remember of the story but it’s something my mind dredges up from my youth periodically. I would love to rediscover the story if I could and re-read it as an adult… even though it’s possibly trash.