ONLY&SONS SIZE GUIDE
Shirts: If your measurements are at the lower end of a size range, you may benefit from choosing a slim fit.
Measure horizontally around the broadest part of your chest. If possible, let your arms hang loose down the sides of your body while measuring.
Measure horizontally around the slimmest part of your waist.
Measure horizontally around the widest part of your hips
Measure the inner length of your legs from your crotch to the floor.
Measure from the centre back of your neck, over your shoulder and down to your wrist.