Made with fibers from the Cannabis sativa strain, which contains very little THC, Hemp by U.K.-based Camira Fabrics blends together 60% wool and 40% hemp in a fabric suitable for interior use. Biodegradable and naturally fire retardant, Hemp is offered in 31 colorways, most of which have only the wool portion dyed, leaving a variegated finish. Some colorways are double dyed, tinting both the wool and hemp.