The knitwear consumer in the United States purchases millions of dollars in yarn, knit fabric, and knit garments each year. Cotton is considered to be a very comfortable fiber for spring and summer wear and the quality-conscious consumer has a preference for natural fibers. Do to the inherent properties of cotton and wool fibers a blend would enhance the quality of knitwear. The purpose of the study was to develop and physically test cotton/wool blend yarns suitable for knitted career apparel.