T-Shirt & Onesie Size Chart

T-Shirt & Onesie Size Guide

Measurements are in centimetres and are taken across a similar garment laid flat.

Ladies fit: We recommend choosing 1–2 sizes above your usual size.

Ladies

Size Length Chest Waist
10 63.5 48 44
12 64 51 45
14 67 52 48
16 68 55 51
18 69 58 55
20 70 60.5 55
22 71 65.5 61

Unisex

Size Length Chest Waist
S 71 54 54
M 73 56 56
L 75 57 57
XL 77 61 61
2XL 78 67 67
3XL 81 70 70
5XL 86 81 81

Kids

Size Length Chest Sleeve
2 42 34 13.5
4 44 35 15
6 49 37 16
8 54 39 17
10 58 42 18
12 63 42.5 18.5
14 66 44 20.5

Baby Onesie

Size Age Chest
000 0–3 mths 19
00 3–6 mths 20.5
0 6–12 mths 22
1 12–18 mths 23.5
2 18–24 mths 25.5

How to measure

  1. Choose a similar T-shirt or onesie that fits well.
  2. Lay it flat on a table without stretching it.
  3. Measure the garment across the front only.
  4. Compare the measurements with the appropriate chart above.
T-shirt measurement guide showing length, chest, waist and sleeve measurements
Important: Allow for normal manufacturing variation. If you are between sizes, choose the larger size.

Looking for hoodie measurements?

View Hoodie Size Chart