O'Neills Adult Size Guide

Size Chest (Inches) Waist (Inches)
XS 38 -
S 40 32
M 42 34
L 44 36
XL 46 38
2XL 48 40
3XL 50 42
4XL 52 44
5XL 54 46
6XL 56 -
7XL 58 -

O'Neills Womens Size Guide

UK Size Chest (Inches)
8 36
10 38
12 40
14 42
16 44
18 45
20 46
22 48

O'Neills Junior Size Guide

Age Chest (Inches) Waist (Inches)
5-6 Years 28 20
7-8 Years 30 22
9-10 Years 32 24
10-11 Years 34 26
13-14 Years 36 28
Please note sizes listed are a guided average