Cotton duck is a class of woven cotton material, commonly known as canvas. Two yarn strands are woven together as warp with a single yarn weft. Duck is used in sandbags, tents and sneakers, for example.

cotton

Cotton is a durable fabric it is also used on many apparel items as cotton is easy and cheap to grow

cotton or more expensive like skin from animals and then less expensive duck tape!!!

yes because that is wat some people use for a pillow in long ago but now we have cotton