A simple knit/purl ribbed hat knit in Zephyr- I found a partial cone of at the thrift store, enough to make a couple hats out of!
I alternated the rectangles as I went along to keep the knitting interesting- even in a wool/silk blend, black yarn isn’t terribly amusing to knit with (well, unless you are somewhere dark- then you have the added excitement of not being to see your yarn well!).
The pattern draws in slightly, which helps give the beanie some stretch- the yarn itself doesn’t have that much stretch due to the weight and percentage of silk.