this isthe best I can work out for this season

The layout is size followed by chest, waist, hip

Small  34-37  30-32  35-37

Medium 37-40  32-35  37-40

Large   40-44   35-39  40-44

XL       44-48   39-43   44-48

2XL     48-52   43-47   48-51

Junior sizes layout size age  waist chest

YXS  5-6   22   24-26

YS   7-8    23   26-28

YM  9-10   24   28-30

YL  11-12  25    30-32

YXL 13-14  26   32-34

I would urge you to double check your size before buying as this really is a rough gude taken from the interwebby thingy and I found slightly different sizes shown on different sites