Gauge
Mittens: 36 sts and 42 rows = 4” / 10 cm in Stockinette Stitch over Chart A using size 2 US / 2.75 mm needles, after blocking

Hat: 33 sts and 38 rows = 4” / 10 cm in Stockinette stitch over Chart B using size 2 ½ US / 3 mm needles, after blocking; 38 sts and 48 rows = 4” / 10 cm over K2, p2 rib using size 1 ½ US / 2.5 mm needles, after blocking, without stretching