Warp knit fabrics containing spandex yarn are a very important segment of the warp knit industry. In the USA, Tricot consumes about 11% of spandex, Raschel 22%, weft knits 6–10%, woven 2%, and the remaining spandex is used in other types of fabrics.
Spandex-containing Raschel is unique. It offers three basic fabric properties not available from any other fiber except rubber, but rubber yarns cannot be spun with either very light denier or high power. The three basic fabric properties are high stretch, recovery, and power.