Materials
Scheepjes Coulor Crafter (100% premium acrylic, 100g/300m) 2 colours Yarn A: 1 ball Ooesterende (2005)
Yarn B: 1 ball Amsterdam (1010)
A4,5mm(US7)

Measurements
Based on 72 rows: 35cm / 13.78in, stretchy, fits hatsize: 44cm to 50cm / 17.32in to 19.69in. Based on 78 rows: 38cm / 14.96in, stretchy, fits hatsize: 50cm to 54cm / 19.69in to 21.26in. Based on 84 rows: 41cm / 16.14in, stretchy, fits hatsize: 54cm to 60cm / 21.26in to 23.62in. Based on 90 rows: 44cm / 17.32in, stretchy fits hatsize: 60cm to 66 cm / 23.62in to 24.98in. Height without pompon: 20cm / 7,87in.

Abbreviations (U.S. / European crochet terms)
blo back loop only : insert hook under back loop only
ch(s) chain or chain stitches
ch-2 sp chain 2 space(s): number denotes number of chains in chain space
sc single crochet
sc2tog single crochet 2 together: (insert hook in st/sp, yoh, pull up loop) twice, yoh, draw through all loops
ss slip stitch
dc double crochet
rep repeat …