This is the Professional Overthinking Shirt — an original tee built around a brain that does its own thing, drawn by hand in ink and watercolor rather than assembled from a template.
Who the Professional Overthinking Shirt is for
This one is aimed squarely at brains that hyperfocus for six hours then forget lunch. It sits in the Sport part of the collection, alongside the other designs about a brain that does its own thing.
Wearing and using it
Soft enough to wear all day and plain enough in the cut to layer, which is what keeps a graphic tee in rotation. Sizes run XS–5XL.
As a gift
The reason this lands as a gift: it isn't a joke about the person, it's a joke they're already in on about a brain that does its own thing.
From the listing
THE MVP OF CONFUSION HAS ARRIVED!
Whether your game is actual basketball, professional overthinking, or just surviving the daily grind with chaotic energy, this "Chaos 13" Rat T-shirt is your official uniform. Featuring a physically exhausted but weirdly proud rat staring at a highly questionable stats board ("vibes: high", "regrets: a few"), this tee perfectly captures the spirit of giving it your all—even when you have absolutely no idea what’s going on.
Perfect for basketball fans tracking the NBA 2026 finals, amateur athletes with great vibes, or anyone who embodies the true energy of a chaotic gremlin. #mouseratshirt
Premium Unisex Crewneck T-shirt | Bella + Canvas 3001
This t-shirt is renowned for its soft feel and sturdy construction, ideal for DTG printing.
Features a side-seamed, unisex tailored fit enhancing body contour and comfort.
Designed specifically with DTG printing in mind, ensuring a clean, vibrant print.
Available in an extensive color range, providing versatile options for personalization.
Produced with eco-friendly processes and materials.
Fabrication: Solid colors are made from 100% Airlume combed and ring-spun cotton; Ash color is 99% Airlume combed and ring-spun cotton, 1% polyester; Heather colors are 52% Airlume combed and ring-spun cotton, 48% polyester; Athletic Heather and Black Heather are 90% Airlume combed and ring-spun cotton, 10% polyester.
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FAQ
Who is the Professional Overthinking Shirt for?
It's made for the chronically distracted and proudly so. The humor is self-directed rather than aimed at anyone, which is why it works both as something you buy for yourself and as a gift.
What sizes does the Professional Overthinking Shirt come in?
Sizes XS–5XL. Every design in the collection runs the full range rather than stopping at XL, so there's no separate plus-size selection to hunt through.
What is it made from?
A premium unisex tee in Airlume combed and ring-spun cotton, DTG printed so the artwork sits in the fabric rather than on top of it. Available in black or white.
How much is the Professional Overthinking Shirt?
From £17.50, depending on size. It's printed to order, and shipping is calculated at checkout based on your delivery address.
Is the artwork original?
Yes — every character starts as a hand-drawn sketch by ArtDesignByNora, in a vintage ink and watercolor style. Nothing in the shop uses templates, stock graphics or clip art.



















