A British Hand Knitting Confederation Pattern for a jumper and cardigan in either DK or Aran yarn.
Needles for DK: 4mm (UK8, US6) and 3.75mm
Needles for Aran: 4.5mm and 5mm
Number of 50g balls of DK or Aran yarn:
Chest size 24 to 26 inches: 7 DK or 7 Aran
Chest size 28 inches: 7 DK or 8 Aran
Chest size 30 inches: 8 DK or 8 Aran