• Ch 4; join with slip st to first eh to form a ring.
• Rnd 1: Ch 2, work 8 hdc in ring; join with slip st to first hdc (do not count ch-2 as an hdc, now and throughout): 8 hdc.
• Rnd 2: Gh 2, work (hdc in next hdc, 2 hdc in next hdc) around; join with slip st to first hdc: 12 hdc.
• Rnd 3: Ch 2, work 2 hdc in each hdc around; join with slip st to first hdc: 24 hdc.
• SIZE MEDIUM ONLY-Rnd 4: Ch 2, work (hdc in next 2 hdc, 2 hdc in next hdc) around; join with slip st to first hdc: 32 hdc.
• SIZE LARGE ONLY-Rnd 4: Ch 2, work (hdc in next hdc, 2 hde in next hde) around; join with slip st to first hde: 36 hdc.
• Rnds 4(5-5)-7(9-10): Ch 2, work hdc in each hdc around; join with slip st to first hdc.

Ribbing

• Ch 3(4-5) loosely.
• Row 1: Sc in second ch from hook and in next 1(2-3) chs: 2(3-4) sc.
• Row 2: Slip st in next 2 dc on hat, turn; skip slip sts, sc in back loop only of next 2(3-4) sc: 2(3-4) sc.
• Row 3: Ch 1, turn; sc in next 2(3-4) sc.
• Rows 4-23(31-35): Repeat Rows 2 and 3,10(14-16) times.
• Row 24(32-36): Slip st in next dc and in same st as joining, turn; skip slip sts, sc in next 4 sc; finish off leaving a length for sewing.
• Sew ends of ribbing together.