A brush for soft shading

Let me introduce the NARS brush. I always use this product for contouring. I purchased it directly from overseas. The bristles are soft and non-irritating, so it allows me to contour without stinging my skin. I used to dislike using cheap brushes because they were too prickly and the bristles were stiff. However, the NARS product definitely has soft bristles, so I think it is a great product that allows me to contour to my heart's content without irritating my skin.