NHS Men's Apparel Size Chart

Alpha Size   Chest Waist Hips
SM   34-36 28-29 36-36.5
MD   38-40 30-32 37-39
LG   42-44 34-36 41-43
XL   46-48 38-40 45-47
XXL   50 42 49
XXXL   52 44 51

The size charts provide general guidelines. If you find that you are between sizes on the charts, order the size larger or smaller based on the style or type of fit you prefer.

How To Measure
Chest: With arms relaxed at your side, measure under arms around the fullest part of chest, all the way around
Waist: Measure around the narrowest part of waist (usually in line with your belly button), all the way around
Hips: Measure around the fullest part of hips, all the way around