spider cloth

noun2

1. •
   A cloth (real, hypothetical or imaginary) manufactured using spider silk.

   • A few species of spiders encourage the hope that the manufacture of spider cloth may yet become something more than a dream. — 1885
2. •
   (no longer used) A sheer fabric made of cotton and silk.

   • It was a gray morning on deck, a gray sea, a gray sky, and a gray, spider-cloth, unimportant coast of Italy not far away. — 1921