"Little ribbon" sun hat - free crochet pattern

Summer is just around the corner! Time to show off your colorful sun hat! This is my first attempt to design a baby sun hat - ribboned, ribbed lines with soft brim.

Materials: (I used)
6mm crochet hook
Double knitting yarn: multi colored
Yarn needle
Ribbon 

Abbreviations:
Ch = Chain
St(s) = Stitch(es)
Sl = Slip stitch  
Sc = Single crochet

Inc = Increase  

Dec = Decrease       

Hdc= Half double crochet
Dec hdc= Half double crochet 2 stitches together
Inc hdc= 2 half double crochet in same stitch

Dc = Double crochet 
Inc dc = 2 double crochet in same stitch
Dec dc = Double crochet 2 stitches together 
Tc = Triple crochet
Inc tc = 2 triple crochet in same stitch
Dec tc = Triple crochet 2 stitches together
Fpdc = Front post double crochet
Bpdc = Back post double crochet

Note: This crochet sun hat pattern is for toddler size (18'' head circumference) with materials indicated. I prefer a soft and light baby hat so light weight yarn is picked, however, feel free to use other type of yarn and a different size of crochet hook as you want.
Special stitch used: 3hdc puff-stitch

Hat:
R1: form a magic ring or ch 2, ch 3 as 1st dc (or using standing dc technique), 12 dc, sl to join, 12 sts
R2: ch 3 as 1st dc (or using standing dc technique), fpdc into next st, (dc, fpdc into each st) x 11 times, sl to join, total 24 sts
R3: ch 3 as 1st dc (or using standing dc technique), 2 fpdc into next st, (dc, 2 fpdc into next st) x 11 times, sl to join, total 36 sts
R4: ch 3 as 1st dc (or using standing dc technique), dc, 2 fpdc into next st, (2 dc, 2 fpdc into next st) x 11 times, sl to join, total 48 sts
R5: ch 3 as 1st dc (or using standing dc technique), 2 dc, 2 fpdc into next st, (3 dc, 2 fpdc into next st) x 11 times, sl to join, total 60 sts
R6: ch 3 as 1st dc (or using standing dc technique), 3 dc, 2 fpdc into next st, (4 dc, 2 fpdc into next st) x 11 times, sl to join, total 72 sts
R7: (5 dc, fpdc) x 12 times, sl to join, total 72 sts
R8,9,10: same as R7
R11: crochet 3hdc puff-stitch, ch 1, 3hdc puff-stitch (repeat 'till end), sl to join, total 36 puff-stitches
R12: ch 3 as 1st dc (or using standing dc technique), ch 1, dc (repeat 'till end), sl to join, total 36 dc sts
R13: hdc around, sl to join, total 72 hdc sts
You'll see the hat with ribbed lines as the following photo

Brim: (continue from R 13)
R14: (5 sc, inc sc) x 12 times, sl to join, total 84 sts
R15: (6 sc, inc sc) x 12 times, sl to join, total 96 sts
R16: (7 sc, inc sc) x 12 times, sl to join, total 108 sts
R17: (8 sc, inc sc) x 12 times, sl to join, total 120 sts
R18: (9 sc, inc sc) x 12 times, sl to join, total 132 sts
R19,20,21: sc around, sl to join, total 132 sts (fasten off, weave in ends)
Thread ribbon through R12 as the following photo:

Tie a bow and you're done xD

Happy crocheting!