Graphene XT vs NOBULL Outwork
Ditch your NOBULLs.
Graphene XT is the barefoot alternative to the Outwork. More room for your toes, zero drop, and no break-in.
“Very comfortable fit, lots of room in the toe box, great insert and very stable thin sole for doing heavy leg work. I've switched over to Flux.”
Verified buyer · Former NOBULL wearer · March 2026
Let your feet move.
Room to spread.
A wide, foot-shaped toe box lets your toes splay and grip under load.
Stay level.
Zero drop keeps your heel and forefoot on the same plane.
Built to last.
Graphene-Pro™ reinforces the outsole where the floor grinds hardest, so a flexible shoe can still take a beating.
Flex with your foot.
Our most flexible cross-training shoe, with breathable ballistic mesh that moves through every lift and climb.
Soothing underfoot.
100+ AdaptSol™ massage nodes add a soothing feel with every step.
Adapt Graphene XT
Best For: Cross-Training, Strength Training, Indoor Workouts
Choose a size to continue.
*All CLEARANCE items are strictly non-returnable. No exchanges, refunds, or gift cards. ALL apparel & accessories are non-returnable as well. Truemed is for qualified customers. HSA/FSA tax savings vary. Learn more at truemed.com/disclosures.
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Choose a size to continue.
Runs small — size up by ½
A flat sole is only
the start.
Here’s what changes when you switch.
Flux Graphene XT
NOBULL Outwork
No break-in. Here’s NOBULL on theirs:
“Certain more durable Outwork materials may take 2–3 workouts to feel fully broken in and softened as it molds to your foot.”
NOBULL FAQ, “How much break-in should I expect?”, Women’s Lunar Gum Outwork page, checked October 28, 2026
*RunRepeat lab measurements. Flux specs from fluxfootwear.com. NOBULL specs as listed by NOBULL unless marked. Last checked October 2026.
Flux Footwear is not affiliated with or endorsed by NOBULL. NOBULL and Outwork are trademarks of their respective owners. Flux specifications are from fluxfootwear.com. NOBULL specifications are from nobullproject.com and cited third-party measurements.
The XT in action.
Hear from lifters who made the switch.
★★★★★ 4.5· 695 verified reviews
“I have a wide foot for a female, so wasn’t sure how the width would be, but they’re great. I get asked about them at the gym...I like ’em.”
Anonymous reviewer
“Love these for my strength days at the gym! Better balance, flat footbed, and extremely comfortable :)”
Jessy S. · Verified buyer · Shop App
“The best training shoe I’ve ever worn. When I was young I wore wrestling shoes and the Metcons. But these are supportive and comfortable enough to wear around town 10/10”
Michael · Verified buyer · Shop App
Questions from
NOBULL owners
Why switch from NOBULL Outwork?
You get room for your toes, a sole that bends with your foot from the first wear, and Graphene-Pro™ where training shoes wear out.
Is it made for CrossFit?
Yes. It’s Flux’s recommended shoe for lifting, CrossFit and rope climbs.
Do I need to adjust to zero drop?
If you’re used to a raised heel, zero drop may feel different. Start with shorter or familiar workouts and build up as it feels comfortable.
How does Graphene XT fit?
It runs small. We recommend sizing up ½. Free exchanges are available if the fit isn’t right.
Will it hold up?
Graphene-Pro™ reinforces the outsole where the floor grinds hardest. And if anything goes wrong because of a manufacturing defect within a year, our Adapt Guarantee+ replaces your pair free of charge.
Can I use HSA/FSA funds?
Eligible customers can pay through Truemed. Eligibility and tax savings vary. See Truemed’s disclosures.
Room to move.
Built to last.
Shop Graphene XT · $150Free returns · 1-year Adapt Guarantee+ on defects