<p>A sun visor for a vehicle used by being engaged with a support section provided in a compartment of the vehicle is comprised of: a sun visor main body configured to shield light; a supplementary body slidably attached to the sun visor main body and slidable from a first position where the supplementary body overlaps the sun visor main body to a second position where the supplementary body is drawn out of the sun visor main body to shield the light in a wider area; and a plurality of through-holes penetrating the supplementary body so as to have incident light partly pass through the through-holes.</p>
