Brushed nylon, with white lacy trim.
Made in England by Ladybird (in the days when Ladybird was an up-market brand, sold in independent drapers' shops).
The labels are marked BRI-Nylon, except for the pink slip, which is marked Terylene/Nylon.
There are no garment care labels, which makes it likely that the garments were made in the 1960s.
The hand-written shop tag has a decimal price on (£0.50); presumably the tag was added (or changed) in 1971, on decimalisation.
Available in a choice of colours: