Hemp is not marijuana. The hemp used in these products refers to industrial hemp made from cannabis sativa L that by definition has less than 1% THC. THC, delta-9 tetrahydrocannabinol, is the potentially psychoactive chemical in marijuana and is not found in significant quantities in the hemp grown for fiber. Industrial hemp has no illicit use. It is the equivalent of non-alcoholic beer. To "get a high" from hemp, an individual would have to smoke a joint the size of a telephone pole in a single sitting, which is humanly impossible.
Hemp is the solution to many of the problems that we are facing in the modern world, including deforestation, the green house effect, erosion, starvation, acid rain, pollutants, limited fossil fuels, and jobs.
Hemp is among one of the oldest industries on the planet, going back more than 10,000 years to the beginnings of pottery. The Columbia History of the World states that the oldest relic of human industry is a bit of hemp fabric dating back to approximately 8,000 BC.
Hemp is naturally resistant to UV light, mold and mildew and to salt water. It has been used for centuries for sails and rope on ocean-going ships.
The bark of the hemp stalk contains bast fibers which are among the Earth's longest natural soft fibers and are also rich in cellulose; the cellulose and hemicellulose in its inner woody core are called hurds. Hemp stalk contains no THC. Hemp fiber is longer, stronger, more absorbent and more insulative than cotton fiber. And hemp grows well without herbicides, fungicides, or pesticides.