Navajo textiles were originally utilitarian blankets for use as cloaks, dresses, saddle blankets, and similar purposes. Toward the end of the 19th century, weavers began to make rugs for tourism and export. Typical Navajo textiles have strong geometric patterns. They are a flat tapestry-woven textile produced in a fashion similar to kilims of Eastern Europe and Western Asia, but with some notable differences. In Navajo weaving, the slit weave technique common in kilims is not used, and the warp is one continuous length of yarn, not extending beyond the weaving as fringe. Traders from the late 19th and early 20th century encouraged adoption of some kilim motifs into Navajo designs.