Sizes: 6-12 months (1-2, 3-4) years
Finished Circumference:

15¼ (17, 19) in / 38.5 (43, 48.5) cm
      NB: the finished hat has plenty of “give” to accommodate various head sizes

Gauge: 21 sts over 4 in / 10 cm
Yarn Requirements: Cotton Comfort – 1 skein
Needles: double pointed needles, size 4 US / 3.5 mm
Optional: size 4 US / 3.5 mm circular, 16 in / 40 cm long