The natural fibre suitable for harmattan is
The natural fibre suitable for harmattan is
Explanation
Wool is a warm natural fiber perfect for cold harmattan weather. It insulates the body, trapping heat to keep you warm during cold dry winds.
Harmattan brings cold, dry weather requiring warm clothing. Wool fibers naturally retain body heat better than other natural fibers.
Cotton and linen are light, cool fibers. Rayon is semi-synthetic. Only wool provides the warmth needed for cold harmattan conditions.