We make merch people actually keep
Killer Koozys started with a drink sleeve and a hunch — that the best marketing isn't the loudest, it's the kind people carry around because they genuinely like it. Today we turn that idea into smart merchandise that bridges the physical and the digital.
From a tech desk in Barcelona to koozys on the beach
Hi, I'm John — an American who moved to Barcelona in 2018 to work in business development and marketing at a tech startup. After a few years I hit burnout and knew I wanted to build something of my own.
I'd collected koozys since I was a kid in the US — compact, fun, personal little pieces of art that made good times better. When I got to Spain, nobody had heard of them. People would stop me on the beach asking "¿Qué es esto?" The market was wide open, so I took my savings and started Killer Koozys to bring koozys to Europe.
It wasn't easy. Months with no sales, 80-hour weeks, four jobs at once. But the koozys kept catching on — because they did something most merch doesn't: they got used, kept, and shown off. Today we tag, box, and ship hundreds every week across Spain, Portugal, Andorra, and Italy.
From koozys to Smart Merch — bridging physical merch and digital engagement
Here's what we learned shipping all those koozys: a great physical product earns something ads can't — a place in someone's real life. It rides along to the beach, the BBQ, the trade show. But it had one gap. It couldn't do anything. It couldn't send someone to your menu, grow your list, or tell you it was working.
So we closed that gap. By adding an optional NFC smart chip, we turned merch into a touchpoint: one tap connects the thing in someone's hand to your website, socials, reviews, or promo — and you can change where it points anytime, and see every tap. That's the company we're building now — not just merch people keep, but merch that keeps working.
What we care about
Quality you can feel
Durable materials and vibrant prints. The three fastest ways merch ends up in the bin are low durability, poor design, and irrelevance — we obsess over the first two so your brand earns the third.
Fun, on purpose
Good vibes are the whole point. We bring creativity and play to every project, because the merch people love is the merch that does the work for you.
Real-world connection
We build products that connect with people where the fun actually happens — and now link that moment straight to your brand online.
Let's make something people keep
Custom koozys, hats, tees and more — smart or standard, your call.
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