Our story
Born from a missed jump.
Every athlete who's done box jumps knows the sound, the crack of a shin against a hard wooden edge. One missed rep can sideline training for weeks and plant a hesitation that never fully leaves.
Qmulus started with a simple, stubborn question: why does the most explosive movement in training still rely on a heavy block of wood that punishes you for trying? The fix wasn't a softer box. Foam slips. The fix was rethinking the box entirely.
So we engineered the first patented inflatable plyometric cube: solid to 440 lb, shock-absorbing on impact, inflated in 45 seconds, folded into its own carry case when done. Built by athletes, for the way people actually train.
Every design decision starts with removing risk: softer landings, gentler impact, and a safer first rep for beginners at every stage.
Not everyone has a spare room. We design for apartments, condos, and real homes.
The more steps it takes to start a workout, the fewer workouts happen. We removed the steps.
"The goal was simple: keep every ounce of performance, and delete every reason to hold back."
Our values in practice.
These aren't marketing words. They're the actual constraints we design by.
Safety without compromise
We chose an inflatable design because it absorbs impact, full stop. It costs more to manufacture than rigid foam. We did it anyway because safety isn't a differentiator, it's a baseline.
Designed for real homes
Every dimension of the Cube was tested against real apartment closets, car trunks, and storage units. If it wouldn't fit in a typical one-bedroom, we made it smaller.
Friction is the enemy
We timed the inflate-to-training sequence obsessively. 60 seconds was our target. Any step that added more than 10 seconds was cut. That's why there's no app required to start.
Fitness is for everyone
The exercise guide was written and tested with beginners in their 60s and competitive athletes in their 20s. If either group struggled, we rewrote it. No exceptions.
Stand behind every unit
The 30-day return policy and 2-year warranty aren't legal minimums, they're our public commitment. If a Cube fails under normal use, we replace it. No forms, no assessment.
Honest pricing
One product, three bundles, free US shipping on every order. $299 covers the Cube, the pump, the case, and the guide. No subscriptions, no hidden fees, and the price you see is the price you pay at checkout.
From garage to your living room.
One bad landing too many
Wooden boxes punish a missed rep with bloodied shins. Foam stacks slip and sink. Prototype #1 of the inflatable cube launches in a Dallas garage, and explodes on the second box jump. The team keeps going.
Patented, tested, athlete-proofed
Dozens of iterations lead to a drop-stitch air chamber that holds firm to 440 lb yet absorbs the hit of a mistimed jump, validated by real athletes under real fatigue. 50 beta testers put the Cube through 90-day trials.
A category of one
Qmulus launches on Shopify. First 500 units sell out in 11 days. The Power Duo, added based on beta feedback, becomes the top-selling SKU within 60 days. The Studio Trio launches for studios and gyms.
Power that travels with you
Over 7,000 customers trained. 94% would recommend. The 12-week training program launches. The Qmulus community is now the brand's biggest acquisition channel.
Train with 7,000+ Cube owners.
From beginners to athletes. From studios to spare bedrooms. One product that works for all of them.
★ 30-day returns · Free US shipping · 2-year warranty