Back to a few basics of construction of the gym slip: this time a lapped zipper.
My local fabric shop did not have an invisible zip (as per the notions list) so I purchased a normal one and made a lapped zipper closing for the gym slip – more in keeping with the ’60s too – as invisible zips had not been invented. I’m sure I must have inserted a lapper zip before, maybe school domestic science classes, but memory needed jogging so I consulted the Vogue sewing bible. There was quite a bit of tacking (basting) involved but as always, preparation here saved time and mistakes later.
Hope this helps some of you, especially if you are intending to make authentic 1960s frocks.