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We understand that everyone is different, so we offer a fantastic wide range of shirts. I've put together this guide to help you find your perfect Kustom Kit style and size.

What is my perfect fit?

Kustom Kit offer 3 styles of shirt:

Classic fit

A traditional silhouette featuring straight side seams and a more generous fit across the chest, waist and sleeves. Cut with a long shirt tail that stays tucked in and wide armholes for ease of movement. Most classic shirts will have either side pleats or a central pleat to the back yoke for a non restrictive and comfortable fit. As a guide based on a 17" collar shirt the actual chest measurement will be 16cms larger than your actual chest and 32cms larger than your actual waist. Sounds a lot? Not really when you consider these measurements in a 3 dimensional context, refer to the illustration below.

We love the workwear classic fit oxford shirt


Tailored Fit

Our tailored fit shirts are just that! Tailored through the body and sleeve for a closer fit that is both smart and contemporary. We taper the waist to ensure a clean silhouette while retaining an unrestricting garment shape. As a guide based on a 17” collar shirt the garment chest measurement will be 12cms larger than your actual chest and 22cms larger than your actual waist.

We love this contrast premium tailor fit shirt

Slim Fit

Our closest fitting shirt is tailored through the body and sleeve. Most of the high street stores such as Burtons and Topman usually sell slim fit shirts rather than any other style. Embrace slim fit! For a sleek appearance we taper the waist and add darts to the back. We keep the cut narrow at the shoulder and lift the armhole to enhance the modern slim silhouette. The result is a surprisingly flattering wearable garment that suits all. As a guide based on a 17” collar shirt the garment chest measurement will be 12cms larger than your actual chest and 14cms larger than your actual waist.

Our most popular Kustom Kit shirt is the slim fit KK192

What's my Size?

To decide on the best fit for you, it’s important to know your measurements. Firstly measure your chest around the fullest part and refer to our measuring guide below. Next measure your collar, around the base of your neck whilst keeping your index finger between the tape and your neck, again refer to the measuring guide. The measuring guide is in actual body measurements not garment measurements, so if your chest measures 43"/112cms and your collar measures 17"/43cms we recommend that you take a 17" collar Kustom Kit shirt.

Mens UK


To Fit XXS XS - S - M - L - XL - 2XL - 3XL 4XL 5XL 6XL 7XL
Collar inches - - 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 21 22 23
Collar cm - - 36 37 38 39-40 41 42 43 44 45-46 47 48 49-50 51 53-54 56 58-59
Chest inches 28-30 32-34 35 36-38 39 40 41 42 43 44 45 46-48 49 50-52 54-56 58-60 62-64 66-68

Womens UK

Bust inches 28 30 32 34 36 38 40 42 44 46 48 50
Bust cm 71 76 81 86 91 96 102 107 112 117 122 127
Womens UK 6 8 10 12 14 16 18 20 22 24 26 28

What if I am in-between sizes?

This will depend on how you like to wear your shirts. Classic shirts are cut more generously so will be more forgiving if you size down. Slim fit shirts however are neatly cut so we would recommend sizing up if you are between sizes.

My collar size is different to my chest size

If you intend to wear a tie we recommend buying to your collar size measurement to ensure a neat and comfortable fit. Choose a classic fit if you use your collar size and a slim fit if you use your chest size. 

If you intend to wear the top button open then you should fit your shirt to your chest rather than your collar measurement.

I hope you have found our Kustom Kit style guide useful! Kustom Kit are one of our favourite brands as the durability and design of their products is always of the highest quality. 

If you need a tape measure or any other advice on shirts - please don't hesitate to get in touch.

Email -

Pick up the phone - 01246 766770

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