Canvas is an extremely heavy duty plain-woven fabric formed from cotton, linen, jute, cotton, and hemp.  Modern canvas is usually made of cotton or linen, although historically it was made from hemp.  As the word has come to be used as a generic term for heavy, tightly-woven fabric, it can also be made from polyester. It differs from other heavy cotton fabrics such as denim because it has a plain weave rather than twill weave. Canvas comes in two basic types: plain and duck. The threads in duck canvas are more tightly woven.  Canvas is heavy and dense and has applications in making tents, sails, tarpaulins, awnings, upholstery, umbrellas, shoe uppers, embossed wall coverings that form a substratum for paint or gilding, and totes. Additionally, it serves as the preferred surface for oil paintings, and is the name for the mesh fabric on which embroidery and needlepoint are done. It also is a type of paper used with inkjet printers. Canvas Fabric. Canvas is used in applications in which a thick, tough, durable fabric is required.
The Panama is a porous tissue in panama or mat bond (double flat). Panama is finer than the hopsack or matting.