Sign Up To Postie


The fit of your clothes depends on the cut, fabric and styling of the garment. We are committed to making sure that all of our styles are consistent with our size charts, however this does differ due to the amount of fabric in the garment. At Postie we have a quality assurance team and process in place dedicated to ensure our sizing is correct. Use the guide below to choose the correct Postie size for your body shape
Size Size Weight (cm) Height (cm) Chest (cm) Head (cm)
Tiny Premature 0000000 up to 2kg 42 - -
Premature 000000 up to 2.5kg 44 - -
Tiny Baby 00000 up to 3kg 50 38 40-42
Newborn 0000 up to 4kg 54 41 42-44
0-3mths 000 up to 6kg 62 44 44-46
3-6mths 00 6-8kg 68 47 46-48
6-12mths 0 8-10kg 76 50 48-50
12-18mths 1 10-12kg 84 53 50-52
18-24mths 2 12-14kg 92 56 52-54
24-36mnths 2+ 14-16kg 98 - -

Measuring Advice

  • Use measurements when selecting your size, rather than just going by the size itself
  • Use a tape measure and keep the tape firm to the body, but not too tight
  • Measure over your underwear
  • To get it right, ask someone to help you take the measurements
BUST: Measure around the fullest part of your bust and across.

WAIST: Measure around your natural waist keeping tape comfortably taut.

HIPS: Stand with your feet together then, measure around the fullest part of your bottom at the top of your legs, approximately 20cm below your waistline.