I rewrote the pattern to make it easier to read. I used scraps of worsted weight acrylic yarn. A K hook was used for a larger sized hat. I also added a few extra rows at the end to make the hat bigger.

Using MC, ch 4, join with a sl st to form a ring.

Round 1: Ch 3, 2 dc in each of next 3 ch sts, 1 dc in last st, join with a sl st.

Round 2: Ch 3, 2 dc in each of next 7 dc, 1 dc in next st, join with a sl st ‑ 16 sts.

Round 3: Ch 3, * 1 dc in next st, 2 dc in next st, repeat from * around, ending 1 dc in next st, 1 dc in last st, join ‑ 24 sts.

Round 4: Ch 3, * 1 dc in each of next 2 sts, 2 dc in next st, repeat from * around, ending 1 dc In each of next 2 sts, 1 dc in last st, join – 32 sts.

Round 5: Ch 3, * 1 dc in each of next 3 sts, 2 dc in next st, repeat from * around, ending 1 dc In each of next 2 sts, 1 dc in last st, join – 48 sts.

Round 6: Ch 3, * 1 dc in each of next 4 sts, 2 dc in next st, repeat from * around, ending 1 dc In each of next 2 sts, 1 dc in last st, join – 56 sts..

Round 7: Ch 3, * 1 dc in each of next 5 sts, 2 dc in next st, repeat from * around, ending 1 dc In each of next 2 sts, 1 dc in last st, join – 64 sts.

Round 8: * Ch 1, skip next st, 1 sc in next st, repeat from * around ‑ 32 ch 1 spaces.

Working in striping pattern work as follows:

Round 9: * 1 long dc in next st, 1 sc in next st, repeat from * around – 32 long dc’s.

Round 10: 1 sc in each st around ‑ 48 sts.

Round 11: Repeat Round 8.

Round 12 ‑ Repeat Round 9.

Round 13: INC ROUND: * 1 sc in each of next 6 sts, 2 sc in next st (inc), repeat from * around ‑ 8 sts inc.

Round 14: Repeat Round 8.

Round 15: Repeat Round 9.

Round 16: Repeat Round 10.

Round 17: Repeat Round 8.

Round 17: Repeat Round 9.

Round 18: Repeat Round 10 ‑ 64 sts.

Round 19: Using MC and with right side facing you, (ch 1, skip 1 st, 1 sc in next st) 3 times, ch 1, skip 1 st, 1 sc in each of next 10 sts for right ear flap, (ch 1, skip 1 st, 1 sc in next st) 12 times,ch 1, skip 1 st, 1 sc in each of next 10 sts for left earlap, (ch 1, skip 1 st, 1 sc in next st) twice, join. Fasten off.

RIGHT EAR FLAP AND CHIN STRAP:

Row l: Join MC in first s c of 10 sts for earlap and work 1 sc in each of next 9 sts.

Row 2: Turn, skip first st, 1 sc in each of next 8 sts. Continue in this manner to work 1 st less at the beg of EVERY ROW until 1 st remains. DO NOT FASTEN OFF. Ch 24 for chin strap. Fasten off.

LEFT EAR FLAP AND CHIN STRAP: Using MC and with right side facing you, join yarn in first sc and work to correspond to right ear flap and chin strap.

EDGING: Using Color B and with right side facing you, join yarn in st at centre back and work 1 long dc in next st, 1 sc in next st, repeat from to start of right earlap, 1 sc in each st around earlap and chin strap, working 3 sc in st at end of chin strap, repeat between ’s around,
working left earlap and chin strap in same manner as right earlap and Chin strap, join. Fasten off.