Needle and yarn: yarn - Mondial Delicata Baby (100% merino wool; 50g - 215 m, knitting in 2 threads of yarn) - 120g; circular needles № 3.5, hook №3.5.
Rib: alt k2, p2
Pattern: with needles №3.5 cast on 4 sts and knit rib. Repeat until strip measures 35cm. Begin increasing of stitches for building hat's "ears" - increase 1 st at the each alternate row beginning and end, including these sts into rib. Repeat it until 22 sts in work. Knit 2 such pieces.
Continue as follows: 22 sts of "hat's ear", cast on 34 sts for front part of hat, 22 sts of "hat's ear", cast on 26 sts for back part of hat. Join knitting into round, being careful not to twist your work. Repeat rib for 3cm. In the next row decrease 8 sts and begin knitting following the chart, repeat it 6 times (establish chart such way that cable with bubbles is in the center of the front part).
Follow chart, where all rows are.
Break yarn and thread it through the remaining stitches, pull tight and weave in the yarn.
I have crocheted edge of the hat and 1 row of reverse sc.