Before measuring:
1. Choose a clean, hard and flat surface at home, preferably a table.
2. Take measuring tool.
Chest (between side seams):
Measure 2cm below the armpits, between the side seams.

Read cm and multiply by 2 (example results - 56cm x 2 = 112cm across the chest)
Hips (between side seams):

(example results - 49cm x 2 = 98cm at the hips)
Sleeve (from shoulder):
Measure from the top shoulder seam to the end of the sleeve.
Sleeve (from collar):
Measure from the collar seam to the end of the sleeve.

Length of the jumper/top (back):
Measure from the back collar seam to the bottom of the jumper/top.

