About us

This isn’t just a tube. It’s the result of a 90+ show obsession.

Hey, I’m Josh, and I’ve been chasing concerts and collecting show posters for two decades. 90+ Dave Matthews shows and 200+ posters later, I finally had enough of bent corners, soaked cardboard, and tubes that were way too tight. I taught myself mechanical engineering, spent a year prototyping, and built the first gruvTube — the wide-body tube designed by a collector, for collectors.

Whether you’ve been to 100 shows or you’re holding your first print, I made this for you — the ones who know the merch table rush, the setlist surprises, and the heartbreak of a damaged poster.

Bent corners. Tight tubes. Rain-soaked cardboard. I’d dealt with all of it by the time I started building gruvTube.

Every Cap set 3d printed and every Tube Assembled By Hand

There’s no warehouse. No third-party fulfillment. Every cap is designed and 3D-printed in-house — I went through over 50 iterations before the tolerances were right, and switched materials entirely after an early batch warped at a hot outdoor venue. Every tube gets assembled and inspected by me before it ships.

That’s not a limitation. It’s the whole point.