O'Neills Size Guide

O'Neills Mens Clothing Size Guide
  Small Medium Large XL XXL
Chest (inches) 37-38 39-40 41-42 43-44 45-46
Chest (cm) 94-96.5 99-101.5 104-107 109-112 114-117
Waist (inches) 31-32 33-34 35-36 38-40 42-44
Waist (cm) 78-81 83-86 88-91.5 96.5-102 106.5-111
O'Neills Kids Clothing Size Guide
  5/6 7/8 9/10 11/12 13/14
Chest (inches) 25-26 27-28 29-30 31-32 34-36
Chest (cm) 64-66 69-71 74-76 79-81 86-91
Waist (inches) 20-21 22-23 24-25 26-27 28-29
Waist (cm) 51-53 56-58 61-64 66-69 71-74