My BSJ Bonnet

Since I don't have the real pattern this is my reverse engineered version of Elizabeth Zimmermann's Bonnet.  She did all the work and then I came along and added my two cents. The differences lie in the back of the bonnet. Hers has a circular sort of spiderweb decrease which to my mind was just too fussy. Plus I felt it need a bit more neck coverage.

This is the correct version done by Nosmallfeet

I confess, I probably would have done this version, if I had had the actual pattern, but no...

So I devised this simpler way to finish off the hat, plus the neckband keeps out the chill.

When I mentioned reverse engineering, let me just say that my first hat was a wash. I used the same size needles (8) as the Baby Surprise Jacket and so the fabric is very stretchy and not having a baby hanging around to measure, I guestimated the size. It was over before I could see what was happening. I fretted it was too small. And then, way too late to change, I did the necessary research and found the Zimmermann bonnet made from this same yarn and the knitter used size 5 needles. The ball band suggests 9-10.5 size needles, so go figure. Now I feel sure that the fabric is better, and will expand to fit a toddler. These both came from a single skein of Mochi Plus, machine washable Merino and nylon. 95 yds, in colorway 557.
Here's the pattern:
Mitered BSJ Bonnet
(The pattern assumes knowledge of making a mitered square. See this post for the complete explanation)
Note: Dec: is Slip one, K2tog, psso. Always slip first stitch on every row.

I skein Mochi Plus, size 5 circular needle, 24 inches
Front miter band:
Cast on 87 stitches.
Knit miter over 35 st, k 17, knit miter over 35
Finish miters and leave center 19 stitches on needle, cut yarn.

Back of hat:
Attach yarn at right back bottom edge, and pick up and knit 17, 19 from center needle, and 17 down final edge. 53 St.
K one row.
K16, dec, k15, dec, K 16. Knit back
Continue decreasing in this manner until 21 sts remain. Bind off with 3 needle bindoff. Cut yarn.

Bottom Band:
Attach yarn at bottom corner of left front miter and pick up stitches along edge up to corner of right miter.
Knit bottom band back and forth in garter for three ridges or six rows.
Bind off from left to right until one stitch remains on needle, then pick up four more stitches along front of bottom band.

Button band:
Knit back and forth on those five stitches for 3 inches and then k2,yo, k2tog, k1 for buttonhole.
Knit three more rows and then K2tog, K3. Turn, K2tog, K2, turn, K2tog. Fasten off and cut yarn. (this makes sort of a pointy end, and really is optional).

Weave in ends and sew on button.
Questions? Email me.