★★★★★50,000+ five-star reviews2M+ lifters
Back Hurts During Squats or Deadlifts?
Hint: your back might be doing your abs' job.
Heavy day. You set up for your top set, take a breath, and start the rep. Then the bar slows down, your midsection gives, and your lower back takes over to finish the rep.
A belt won't fix an injury (more on that below). But if your back is the first thing to feel your heavy days, here's why so many lifters buckle up before they get under the bar.
Try It Risk-Free For 45 Days
01Sound Familiar?
Your Lower Back Is the First Thing to Give Out
Your legs still have reps left, but your lower back is done. On heavy squats and deadlifts, that usually happens when your midsection softens under the bar. Your chest drops or your hips shoot up, and your lower back ends up doing work your whole trunk should be sharing.
You feel it on the drive home. And again the next morning.
02Bracing
A Belt Gives Your Brace Something to Push Against
Bracing means taking a big breath and pushing your abs out hard in every direction. Without a belt, there's nothing to push against. With one, your midsection drives into a rigid wall of leather, so you can build more pressure around your trunk and keep it there.
03Stay Locked In
Your Torso Stays Rigid When the Bar Slows Down
The sticking point is where form breaks down. A tight brace helps you hold your position through it, so your torso stays stacked instead of folding over.
Lifters tell us heavy days feel more solid with a belt on, and they walk out of the gym feeling less beat up.
04Built Stiff
10mm Leather Doesn't Fold When You Need It
A soft or flimsy belt bends right when you brace into it, which defeats the point. 10mm leather holds its shape under a hard brace, without the months of break-in a 13mm belt needs.
It's rigid enough for your heaviest sets and comfortable enough for squat, bench and deadlift.
05The Right Fit Every Lift
A Hole Tighter for Squats. A Hole Looser for Deadlifts.
A belt only helps if it fits the lift. Most lifters wear it a little tighter for squats and a little looser for deadlifts, so they can still set up in a good position.
The double roller prong lets you change it at the bar, between sets, by hand. No screwdriver needed.
06Risk-Free
Feel the Difference on Your Next Heavy Day
You can read about bracing all day. Or you can feel it under the bar.
Train in it for 45 days. If you don't love it, send it back for a full refund.
07The Belt
Everything You Want From a Lifting Belt. Nothing You Don't.
- 10mm leather that stays rigid under a hard brace
- 4" straight cut, the same width all the way around, front included
- Double roller prong that stays flat and adjusts by hand
- IPF-approved for competition
08Train With Confidence
Join 2,000,000+ Lifters Who Train in Iron Bull
More than 2,000,000 lifters train in Iron Bull Strength, with over 50,000 five-star reviews. We've been making lifting gear since 2012.
Try your belt risk-free for 45 days. If you don't love training in it, send it back.
Try Risk-Free — $125 + Free Shipping
Try It Risk-Free For 45 Days
Give Your Core The Support It Needs
★★★★★50,000+ five-star reviews2M+ lifters
10mm Double Prong Belt
10mm Leather · 4" Straight-Cut · IPF-Approved
Rigid 10mm leather with a double-prong buckle you can adjust lift to lift.
- Rigid wall to brace against on heavy sets
- Helps keep your torso tight through the sticking point
- A hole tighter for squats, looser for deadlifts
- IPF-approved for competition
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$125
$90
50,000+ five-star reviews · 2M+ lifters trust Iron Bull
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Will a lifting belt fix my back pain?
No, and we won't pretend it will. A belt isn't a medical device or a treatment. What it does is give you something to brace against on heavy squats and deadlifts, so you can keep your trunk tight and your position solid.
If your pain is sharp, shoots down your leg, or sticks around after you train, see a doctor or physiotherapist before you lift heavy again.
How do I wear it on heavy sets?
- Warm up without it, then put it on for your working sets
- Wear it around your waist, roughly at belly-button height
- Snug, not crushing: you should fit a flat hand between the belt and your stomach
- Take a big breath into your belly and push out against the belt before every rep
Specs & Materials
- 10mm leather
- 4" straight-cut, same width all the way around
- Double roller-prong buckle
- 7 colors · sizes S–2XL
Sizing & Fit
Measure around your waist where you'll wear the belt (around the belly button), not your pants size, then match it to the size chart. Wrong size? Exchanges are free.
Break-In & Care
Wear it for your working sets and gently roll it in both directions to speed up break-in. Wipe clean, keep it dry, and don't leave it in a hot car.
Shipping, Exchanges & Trial
Free shipping on orders $99+, so this belt ships free. Exchanges are free, and you get a 45-day risk-free trial.
45-Day Risk-Free TrialTry Risk-Free — $125 + Free Shipping
★★★★★50K+ 5-star reviews | 2M+ lifters
Lifting Belt Size Chart
BELTS
Measure around your waist at belly button level — not your pants size.
| Size | Waist (inches) |
| S | 25-30 |
| M | 30-35 |
| L | 35-40 |
| XL | 40-45 |
| XXL | 45-50 |
| 3XL | 50-55 |
| 4XL | 55-60 |
Lifting Belt Size Chart
BELTS
Measure around your waist at belly button level — not your pants size.
| Size | Waist (inches) |
| S | 25-30 |
| M | 30-35 |
| L | 35-40 |
| XL | 40-45 |
| XXL | 45-50 |
| 3XL | 50-55 |
| 4XL | 55-60 |
7mm Knee Sleeves Size Chart
Measure around your kneecap with a straight leg. For a tighter fit, size down — for a looser fit, size up.
| Size |
Knee Circumference (inches)
|
| XS | < 11.8 |
| S | 11.8 - 13 |
| M | 13 - 14.2 |
| L | 14.2 - 15.7 |
| XL | 15.7 - 17 |
| XXL | 17 - 18.3 |
Read this first
A Belt Isn't a Fix for an Injury
If your back pain is sharp, shoots down your leg, or doesn't go away after training, see a doctor or physiotherapist before you lift heavy again. The 10mm Double Prong is a rigid powerlifting belt for lifters who want a stronger brace on heavy squats and deadlifts. Never used a belt before? Start with our Lifting Belt Guide.
Still on the fence?
The Benefits Outwhey the Cost
(Pun intended.)
You don't think twice about a tub of protein. Here's how a lifting belt stacks up against it.
A 5 lb tub of whey
About $115
73 scoops. Gone in about 5 weeks.
Iron Bull 10mm Double Prong Belt
$125
Built for years of heavy training. 45-day risk-free trial.
| Compare | Tub of Protein | Lifting Belt |
|---|---|---|
| Price | About $115 | $125 |
| How long it lasts | About 5 weeks (73 scoops) | Years of heavy training |
| Cost per use | About $3.04 a serving | $0.08 a heavy session* |
| Helps you get stronger | ||
| Something to brace against | ||
| Tighter midsection on heavy sets | ||
| IPF-approved for competition | ||
| 45-day risk-free trial |
Keep buying the protein. Add the belt for better results.
Get Your Belt — $125*$0.08 per heavy session based on $125, 3 heavy sessions a week for 10 years (1560 sessions). Protein price based on a typical 5 lb whey tub with 73 servings at about $115 at US retailers, November 2026.
Made for Heavy Days
50,000+ five-star reviews across Iron Bull gear45 Day Free Trial
Train in it, not just try it on. Full refund if it's not right.
Free Exchanges
Sized wrong? Swap it free. No restocking fee, no argument.
50,000+ 5-Star Reviews
Over 2 million lifters trust Iron Bull every time they train.
Two Ways Your Next Heavy Day Can Go...
You have a decision to make before your next workout.
Option 1
Let Your Back Keep Picking Up the Slack
Keep grinding top sets with nothing to brace against. Keep feeling your midsection give right at the sticking point, your lower back take over, and the reminder of it the next morning.
Option 2
Brace Like You Mean It
Buckle on the 10mm Double Prong and get a stiff wall of leather to drive your abs into from the first rep. Your torso stays tight when the bar slows down, and your heavy days feel solid instead of shaky.
Choose Option 2Try it risk-free for 45 days.
45-Day Risk-Free Trial
Train in it, not just try it on. If it's not right, send it back for a full refund.
Free Size Exchanges
Measure your waist where you'll wear the belt, not your pants size. If you sized wrong, we swap it free, no restocking fee, no argument.