You’re strong. Your shoes aren’t.

You train hard, track every rep, chase every PR—but if your shoes are soft, squishy, or sliding under you, you’re leaving gains on the table.

TRAIN SMARTER WITH FLUX

Why are you training hard…in weak shoes?

Running shoes and cushioned trainers aren’t built for barbells. They feel good walking in, but under load they wobble, slide, and break down. That means lost power, wasted effort, and sore knees after training.

You wouldn’t bench on a Bosu ball. So why squat on clouds?

Think about it: you’d never risk your lifts on unstable ground. But every time you squat, sprint, or climb in soft shoes, you’re fighting your own gear. Strong lifters know, your base is everything.

Flat = stable. More control, less wobble.

Direct power. Energy goes to the bar, not into foam.

Built for grit. Rope climbs, sled pushes, HIIT—no breakdown.

Serious shoes. Because serious lifters don’t wear squishy soles.

More shoe ≠ more performance.

The truth: big, cushioned shoes do the work for your feet. That might feel comfy, but in the gym, it robs you of power, stability, and results. Flux does the opposite. Our shoes give your body the freedom to grip, balance, and move naturally—so you get stronger with every rep.

LEVEL UP YOUR TRAINING

Shoes that move with you—not against you.

Flux isn’t about gimmicks or foam. We build shoes that let your body do what it was designed for: train on a strong, natural foundation. That means better grip, better stability, and a stronger you.

WIDE STANCE

FLAT BASE

DURABLE OUTSOLE

Trusted by Trainers. Built for Athletes.

Over 10,000 5 star reviews

★★★★★

With excellent traction for sled pushes/pulls, stability for plyometrics and an overall great fit, this shoe may live up to the indestructible claim!

German G.
★★★★★

I've done a few weeks of CrossFit in these and I have no real complaints. I feel glued the the floor when lifting while still feeling light and responsive with jumping and bodyweight movements.

Jeremy
★★★★★

Checks all of the boxes for a gym shoe that is light, durable, and functional. From fast run intervals on the treadmill to heavy sled push/pulls on rubber matting, this shoe goes ballistic!

Wooch G.
★★★★★

I didn't know what to make of these at first. They felt TOO roomy, like they'd be sloppy. Nope, wrong. They're amazing. I coach in them for 4 hours and more often than not keep them on for my own CrossFit workout.

Jesse S.
★★★★★

This is the 3rd style of Flux shoes I have purchased. I own 2 pairs of the Runner, 2 pairs of the Knit Trainer, and now my first pair of the Graphene XT. I love the way this one fits and feels when I am training.

Joseph I.

You’re already strong. It's time your shoes caught up.

Flux was built for lifters, grinders, and athletes who know every rep counts. Stop wasting power. Start training on a foundation that works as hard as you do.
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