Slips are usually made of some very soft material such as nainsook, batiste, pearline, or sheer lawn cloth.
"The Mother and Her Child" by William S. Sadler
She wore a frock of white embroidered nainsook and a leghorn covered with white feathers.
"The Californians" by Gertrude Franklin Horn Atherton
One was cambric, one was fine lawn or nainsook, and one of dimity.
"A Little Girl in Old New York" by Amanda Millie Douglas
The striped and plaid nainsook are used for the same purposes.
"Textiles" by William H. Dooley
She had turned on the electric light above her head and had, seemingly, been working at some diminutive garment of nainsook and lace.
"Jan and Her Job" by L. Allen Harker
So I just bought some beautiful, fine nainsook and cut out my shroud.
"Dr. Lavendar's People" by Margaret Deland
Nina's gown was of white nainsook ruffled to the waist with lace, and very full.
"A Daughter of the Vine" by Gertrude Franklin Horn Atherton
Constructed of bamboo and nainsook.
"The Theory and Practice of Model Aeroplaning" by V. E. Johnson