Istang - traditional chechens' felt carpet, decorated with national ornament, made with method of colored application. These carpets were being made before the beginning of XX century. The making of these has also been in Dagestan, Ingushetia, and in Kuban, but in smaller scales.
O. Markgraf wrote about chechen-kumyk district production of felt production.
"From felt productions varicoloured seaming carpet-harlequins deserve special attention. Every bride, for example, must make for herself 2-3 harlequins and from 10 to 20 prayer rugs"