For the hat and mitts:
1 (1, 1, 2) x 100g ball Chunky yarn MC
1 (1, 1, 1) x 100g ball Chunky yarn CC
chunky yarn used is 120m (131 yds) per 100g
tapestry needle for sewing up

For the S, M and L hat:
4.5, 5 and 6 mm (US 7, 8 and 10) circs
2 x 4.5 mm cable needles or dpns for i-cord

For the S, M and L mitts:
pair 4.5 and 5 mm (US 7 and 8) needles

For the XS hat:
4, 4.5 and 5 mm (US 6, 7 and 8) circs
2 x 4.5 mm cable needles or dpns for i-cord

For the XS mitts:
pair 4 and 4.5 mm (US 6 and 7) needles

Pattern available for a donation to MSF