We are not alone
Mostly aliens.
Occasionally swamp gas.
Tees for everyone still looking up — the believers, the skeptics, and the gloriously undecided.
Alien Tees
Made to order, just for you
Fast local shipping · US · UK · EU · AU
30-day money-back guaranteeOut there, looking up
Fellow travellers in the grey area — repping the tees in the wild.
Wear your suspicions proudly. Browse the drop →
I'm not saying it's aliens.
But it's aliens.
One night as a teenager I saw three lights move in a way three lights have no business moving — no sound, then gone. I never let it go. I'm not a hardcore conspiracy guy and I'm not a debunker either: I live in the maybe, and I built Mostly Aliens for everyone else who does.
Believers, skeptics, meme-lovers, and people who just think the whole thing is wonderful — there's room for all of you here. Original art, made to order, no clip-art floor.
Keep watching the skies — Cal
Read our storyPick your camp. Or don't — that's allowed too.
Wherever you land in the grey area, there's a tee for it.
Questions, answered
Are these made to order?
Yes. Each tee is printed for you when you order, by a print partner near you — less waste, and the good stuff never sells out for long. It adds a little time up front (see shipping), but it's worth the wait.
Where do you ship from, and how long does it take?
From the partner closest to you — US, UK, EU or AU. Most orders are made and on their way within 2–5 business days, then standard carrier time on top. Tracking lands in your inbox the moment Mort waves it off.
How do the sizes run?
True to size, classic unisex fit. Size up one if you like room to breathe. There's a full size guide on every product page.
Returns?
If it's not right, we'll sort it — reach out within 30 days for a replacement or refund. We won't probe you about it.
Is it… actually aliens?
Officially: unidentified. Unofficially: it's aliens.
Who's Mort?
Our resident Grey. Big head, bigger eyes, permanently mid-eye-roll at humanity. He's the face of the place and he is not impressed.