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Hidden Message T-Shirt – Customisable T-Shirts
Hidden Message T-Shirt – Customisable T-Shirts
Say Anything — and Only You’ll Know
This is clothing with a secret — designed for those who get the joke, the reference, or the code. Our If You Know, You Know collection lets you say exactly what you want, but in a way only the right people will understand. Use hidden languages like nautical flags, Morse code, hieroglyphics, or even the Greek alphabet to spell out messages that stay between you and whoever’s in the know. From personal jokes to bold statements, this is unapologetically yours.
£19.99
Hidden Message T-Shirts — If You Know, You Know
Welcome to a new kind of statement piece — our hidden message T-shirts are for those who want to speak their mind, without saying a word. Whether you’re a sailor, a geek, a linguist, or just someone with a sharp sense of humour, these shirts are made for you.
Using our custom T-shirt designer, you can build a shirt that hides your message in plain sight. Choose from a range of typographic systems including Morse code, nautical signal flags, Egyptian hieroglyphs, Greek letters, and more. Each font is built in, so all you need to do is type — we’ll take care of the translation and print it on your chosen shirt.
What you say is entirely up to you. We’ve seen inside jokes, cheeky phrases, coordinates, personal mottos, and yes — more than a few cleverly disguised swear words. It’s bold. It’s cryptic. And it’s a total conversation starter (if people can crack the code).
All of our shirts are made from high-quality 100% cotton, chosen for softness, breathability, and long-term durability. Whether you’re lounging on deck, roaming a festival, or just flexing your intellect, you’ll look good and feel comfortable doing it.
Need inspiration? Check out examples from other customers — and if yours makes us laugh, we might even feature it. This is more than a shirt. It’s a secret, a statement and 100% you.