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Nail the perfect fit.

Arguably the most important part of selecting your suit is getting the size right. Too large and you 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 ensure your rented suit fits like a glove, we offer three convenient options:

Watch our video guide

Learn how to take accurate measurements yourself with our easy-to-follow video tutorial below.

Download a sizing app

Get sized up in the comfort of your own home, all without needing a measuring tape.

A suit you already own

Take the guesswork out of sizing by using a well-fitting suit you already have as a reference.

Sizer App

Download the app

Having measurements taken with a measuring tape is preferable. However, if you don't have a measuring tape or personal tailor at home, we recommend the Abody app with three main notes:

  • The app really does work. If you can wear underwear (at least topless) when taking the body scan. Clothes will increase your sizes.
  • Use the app as a guest (Try without an account).
  • To re-measure, you'll want to delete your account and start again (click the 'i' symbol, account information, delete account and data).

A Suit You Own

Start with a well-fitting suit or separates you already own.

Already own a suit or separates that fit well? Look at the labels! Rathbones Tailor uses UK sizing, which is typically displayed as:

  • Jackets: A number followed by a letter (e.g., 40R). The number indicates chest size in inches, while the letter represents jacket length (R = Regular, L = Long, etc.).
  • Trousers: Two numbers separated by a slash (e.g., 34/32). The first number is the waist size in inches, and the second is the inseam length (in inches). Important: Jeans and suit trousers use different sizing systems, so don't rely on your denim size for suit trousers.