MAC 159 Duo Fibre Blush Brush ($35.00) is a new brush with a blend of natural and synthetic bristles that launched alongside MAC’s Tropical Taboo collection, which featured many Mineralize Blushes/Skinfinishes. It will be added to the permanent range as well. It has a tapered, dome-shaped edge, with the white bristles coming out just a bit further than the black ones, so the edge has a softer, fluffier feel and less density compared to the rest of the brush, which was dense and firm (but not too firm). At its widest point, it’s just under an inch wide and about an inch tall. It’s somewhat similar in size to the 109 brush, but this is flatter and not as circular (and of course, the shapes are different), but they have a similar height and width, just not a similar depth or circumference.