People who live in severely cold climates, such as the Eskimos, keep warm by wearing pants and parkas with fur linings. The fur traps the warm air from their bodies and creates a life-saving insulating layer of warmth. Desert nomads keep the harmful hot sun from dehydrating their bodies by covering up with long flowing robes and headdresses. Their clothing actually keeps them cooler.

14. Herringbone stitch: This is used as a decorative stitch as well as for finishing hems and raw edges of seams. Stitches are worked from left to right along two parallel lines. Bring out the thread at the bottom left hand corner of the work. Insert the needle on the top line at a point farther to the right and take a short stitch through fabric from right to left so as to get a slanting stitch. Now take a short stitch through fabric from right to left on lower line to get another slanting stitch crossing the first one at point little Fishbone Stitch Herringbone Stitch below the top line. Take care to make stitches of even length at regular distances apart.