"Linen napkins" refers to cloth napkins made from a specific material called linen, which is a type of fabric woven from the fibers of the flax plant. Full definition
Dress them up with metallic accents and cut glass for entertaining, or layer with linen napkins and a few simple candles for everyday use. (potterybarn.com)
Layer the dinner plates with a salad plate in a bright print or color, and don't be afraid to toss on casual linen napkins in the same color scheme. (potterybarn.com)