I have made these pants and the top using Advance pattern 7899, I'm guessing it is from the 50's. The pattern describes this pattern as being sports separates. How glamorous!
I have no idea what the fabric is, as it was given to me, but it has a polyester content for sure. The pants called for 2 zips, but I bought a longer one and only needed the one. I love them and will need to find more appropriate fabric.
When I first made the top it was too big, this is the smaller version, it's a tad too small. I can still breath and move so not all is lost. The pattern called for it to be fully lined, but I opted to use bias binding on the openings instead.
This will be a spring staple here in sunny Bris Vegas for sure. Check out my blog for more Australian spring sewing to come.