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Mardy Bum Kids T-Shirt


Kids T-Shirts

How to measure

If in doubt with sizing:

• Grab your current favourite T-Shirt that fits you best
• Lay it out flat
Measure according to the below diagram and refer to the chart underneath:

— A: Measure horizontally directly across the front of your T-shirt, from just below the sleeve seam straight across to the same location at the opposite side. Make a note of the length in centimetres. This will give you your Half Chest size to compare to the below chart.
— Optionally, measure the Body Length of the T-Shirt (B), and the Sleeve Length (C).

Our Tees are true to size. For a looser fit, order a size up.

Kids T-Shirt Size Chart
A:Half Chest3335374144
B: Body Length424651.557.562.5
C: Sleeve Length11.512.514.516.518.5

Well now then Mardy Bum… why not show off your love for South Yorkshire dialect language with this stylish Mardy Bum Organic Kids T-Shirt from The Sheffield Guide — a local saying made famous worldwide by Steel City sons Arctic Monkeys.

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The Sheffield Guide Exclusive Product


Well now then Mardy Bum… why not show off your love for South Yorkshire dialect language with this stylish Mardy Bum Organic Kids T-Shirt from The Sheffield Guide — a local saying made famous worldwide by Steel City sons Arctic Monkeys.


Any purchase you make goes towards supporting The Sheffield Guide, local content creators, artists and businesses.

Every item is made-to-order, especially for your purchase! Where possible we support the local economy by sourcing our products and services within the Sheffield city region. Additionally, we prioritise independent businesses that use ethical practices and materials where possible. Where it is has not been possible to source to our high standards within the city region, we utilise businesses as close as possible.

Thank you for your support.


Material: 100% organic ringspun combed cotton Weight: 155 gsm.

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• Single jersey.
• Medium fit.
• Set-in sleeve.
• 1×1 rib at neck collar.
• Inside back neck tape in self fabric.
• Sleeve hem and bottom hem with narrow double topstitch.


Shipping information

All prices exclude delivery and we ship worldwide. Shipping options depend on destination and weight; available options will presented for selection when you enter your address during the checkout process. As all items are made-to-order, purchases are shipped following production. Estimated production turnaround time is 3 to 5 working days.

Sustainable Plastic-Free Packaging

Orders are shipped in 100% plastic-free packaging.

The packaging used for an order varies depending on the products being shipped, but the information below will give an idea of the packaging you can expect an order to ship in.

Paper mailing bags

Most orders up to a certain size will ship in either a small, medium or large paper mailers.­

Clothing items such as t-shirts and hoodies are folded neatly into these bags; to save on packing materials and reduce waste we do not pack items into individual bags before they are shipped in these mailers.

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Our paper postal mailing bags are manufactured from responsible, sustainable sources to comply with FSC certi­fica­tion. The paper is both compostable and degradable, and paper mailers can be easily recycled, making this an extremely eco-friendly option. The weather-proof parcel protects its contents during transit.


Cardboard boxes are used for orders too bulky for our large paper mailers. They work in just the same way though; clothing items are folded neatly into them, and any products requiring special packaging (such as mugs) which are shipping with clothing items are packed in their own packaging first before shipping in a box.

Mug boxes

Each mug ships in a mug box.

11oz white and two-toned mugs ship in our bespoke single, 2x, 4x or 6x boxes. These are designed specifically for protecting mugs during transit.­

Other mugs including enamel and travel mugs ship in thinner cardboard boxes. These boxes aren’t weather-resistant so they’re shipped wrapped securely in our bespoke paper mailing bags.

Poster tubes

They’re a triangular tube of weather-proof reinforced cardboard. This shape allows for easier transpor­ta­tion and label application so it’s very practical!

All posters ship in these tubes but for the A4 bamboo prints, which ship in reinforced envelopes.

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Clothing Wash Instructions


See the terms and returns policy.


The Sheffield Guide

The Sheffield Guide Exclusive Product

Additional information

Age Group




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