Sizing Guide

Sizing Guide

Arguably the most important part of selecting your suit is sizing.  Too large and look like you’re wearing hand me downs.  Too small and you look like you’ve just had a growth spurt in secondary school.  To combat this, below is are easy step by step instructions on how to take the main measurements to ensure the Rathbones Tailor suit you order fits like a glove.  As well as how to take these measurements, there is a short paragraph on each of the suits in the Rathbones Tailor range and how to apply your measurements.


A great starting point is a suit or pair of smart trousers and a jacket you already own that fit you.  Have a look at the label of each.  Rathbones Tailor works to UK sizing.

  • Jackets will most likely have a number followed by a letter.  The number is the chest size, the letter is the length of the jacket.  Eg 40R is a 40 inch chest, regular length.
  • Suit trousers will have two numbers.  These are the waist size/in-seam length.  So a 34/32 is a 34 inch waist, 32 inch in-seam.  Sizing of jeans varies greatly so it’s best to use a smart pair of trousers as your benchmark.


If you don’t own a pair of trousers or a jacket that fit then not to worry.  Click here to find out how to take the important measurements to fit a suit.