Cotton duck (from Dutchdoek,"linen canvas"), also simply duck, sometimes duck cloth or duck canvas is a heavy cottonfabric. There is also linen duck, which is less often used. Cotton ready for harvest. ... Sunday textile market on the sidewalks of Karachi, Pakistan. ...
Duck is classified according to weight in a numerical system, with grade 1 the heaviest and grade 10 the lightest variety. Besides this, traditional names exist, which are rarely used today.
Duck is used in a wide range of applications, from sneakers to over tents to sandbags. Sneakers Sneakers are footwear of flexible material, typically featuring a sole made of rubber. ... A tent is a shelter, consisting of sheets of fabric or other material draped over or attached to a frame of poles and/or ropes. ... A sandbag is typically used in flood control, but the exact use can vary. ...