two-ply

Etymology
From.

Adjective

 * 1) Consisting of two layers or two strands.
 * 2)  Consisting of two webs woven into one another.
 * two-ply carpet
 * 1)  Consisting of two thicknesses.
 * two-ply collar/two-ply cuff
 * two-ply collar/two-ply cuff