So SIGMA brushes are a big hit. I had to compare. The pics came out blurry which i hate!! but anyhow below is the 217 and sigma's replica of it. The bristles are similar and they both get the work done when it comes to blending. The only bad part is SIGMA BRUSHES SHED! i hate brushes that shed!.....but if u cant afford mac i guess sigma will be great. The 239 from mac & sigma. The SIGMA is a bit wider.