Pattern is on Katerina's blog (scroll down for English version). And you don't have to speak Russian to benefit from her companion video, which walks you through each step.
I know the technique she's using here isn't traditional brioche knitting, but I don't know enough about knitting terminology to know what this is called in English so I'm just calling it Russian brioche. It resembles traditional two-color brioche in appearance and squishy, stretchy texture ... so why not call it brioche?
I love everything about this pattern: The two-color double-knit brim makes a perfect base from which to launch into the two-color Russian brioche crown - and a super-warm, soft and stretchy band to hug the wearer's head. And the crown has the gorgeous look of brioche without the difficulty of knitting in brioche. And it's reversible!!
I'm rating this pattern as "medium" difficulty only because there are a couple of intermediate stitches involved (the double-knit brim and knitting and purling into the row below) and the decreases are a bit challenging, but I'm sure a skilled beginner can manage them if they watch the video closely.
This hat will be one of Silver's gifts this Christmas. Here's the link to my Ravelry project page, which has the details for yarn colors and needle sizes used.
