Please, find below the size chart of various items in UK, European and US sizes.
This table should be taken as a guide.

Mens Shirt Sizes

UK/US sizes are measured in inches by measuring the front and back of the chest. The European size only measures the front of the chest and is measured in cm.

Style - Loose Fit
Size UK/US EU
X-Small 42inches 52cm
Small 44inches 56cm
Medium 46inches 60cm
Large 48inches 64cm
X-Large 50inches 69cm

Mens Jacket Sizes

UK/US sizes are measured in inches by measuring the front and back of the chest. The European size only measures the front of the chest and is measured in cm.

Style - Regular Fit
Size UK/US EU
Small 34inches-36inches 54cm
Medium 38inches-40inches 58cm
Large 42inches-44inches 62cm