BACKED BY BREATHING SCIENCE

Train your breath.Own the rest.

Build the ONE muscle that powers everything else.
5 minutes a day.

·Surfers·Runners·Cyclists·Peak Seekers·Freeriders·Martial Artists ·Surfers·Runners·Cyclists·Peak Seekers·Freeriders·Martial Artists
Peer-reviewed research

One muscle controls it all.
Most people never train it.

Your diaphragm gives out first — your body robs your working muscles of oxygen to keep you breathing. OXYCURL builds it up with two-way resistance breathing that forces real adaptation.

+0 %
Respiratory muscle strength
Peak strength gain — 4 weeks
0 wks
To feel results
Most users report difference from week 1. Strength gains measurable from week 4.
+0 %
Breathing endurance
Measured after 4 weeks of training

All of the above — starting with 5 minutes a day.

Sources: Scientific Reports (Nature, 2023) and MDPI (2021) — resistance breathing (IMT) studies, not OXYCURL specific trials.
Sand
Hybrid Breathing Performance
OXYCURL TRAINER
Color
Sand
Obsidian
  • Adjustable two-way resistance breathing device.
  • Full hybrid training system — device protocols & breathwork.
  • OXYCURL Carry Case included with every order.
$69.00$89.00
Free US shipping
In stock
30-day returns
Secure checkout
1-year warranty
Simple process

How it works

01
The Problem

Your diaphragm fatigues

When breathing muscles tire, your body triggers the metaboreflex — redirecting blood away from working limbs to keep you breathing. Performance collapses.

02
The Training

Resistance builds strength

OXYCURL adds calibrated load to each inhale. Like weight training for your diaphragm — progressive overload that forces adaptation in 4–12 weeks.

03
The Result

Your threshold moves up

Stronger respiratory muscles delay the metaboreflex. More oxygen stays where you need it. Longer hold. Stronger paddle. Faster recovery.

The basics first.
Most adults breathe with the wrong muscles — and never notice.
Take one slow breath.
Notice what moves first.
Shoulders Rise
Accessory muscles. The stress pattern.
Chest Expands
Secondary movement. Not the main driver.
Belly Expands First
Diaphragmatic. The pattern you want.
Your training path
Whatever your level, the training meets you there.
Days 1 – 3
FEEL YOUR DIAPHRAGM

Breathe into your belly, not your chest. Find the motion.

Days 4 – 14
BUILD THE HABIT

5 minutes a day with resistance.
Make the pattern stick.

Day 15 +
TRAIN UNDER LOAD

This is where the protocols kick in. See what you're actually capable of.

Try it free
No purchase required · 5 min

Two dials. Two different jobs.

What you need on the inhale is not the same as on the exhale.
out
High
builds endurance & volume
Low
trains control
In
High
builds strength
Low
trains power
Carry Case

Goes everywhere you do.

Included free · Launch offer
Carabiner-ready
Carabiner-ready
Clip anywhere, everywhere.
Washable
Washable
Rinse off and go.
Compact & durable
Compact & durable
Built to survive every trip.
Shop OXYCURL →
Built for performance

Where breathing matters most.

From sea level to 8,849m. From the lineup to the cage.
Surfers
Surfers
Longer paddles to the lineup. Calmer hold-downs in the impact zone. Faster recovery between waves.
Runners
Runners
Train the muscle that quits first. Hold pace when your lungs want out
Peak Seekers
Peak Seekers
Train down here. Feel it up there.
Included with every device

16 breathwork techniques.
No device needed.

Calm down before a meeting. Focus before competition. Fall asleep faster. Instant result. 16 guided breathing techniques unlocked the moment you scan your QR code.

Box breathing
Focus
Apnea walks
Endurance
4-7-8
Calm
+ 13 more
All purposes
all techniques

The full system.

One device. Full training ecosystem. Unlock content with QR inside the box.
All Benefits

What you're training for.

7 scientifically-backed improvements.
ControlFocusEndurance+ 4 more
Explore all benefits →
Device Training

8 protocols. 3 levels.

Structured resistance sessions from Beginner to Pro.
StabilityCapacityActivation
Scan QR inside the box to unlock
Breathwork

16 breathwork techniques. No device needed.

Real-time breathwork for instant state control.
EnergyFocusRecoverySleep+ more
Scan QR inside the box to unlock

What they say

6 reviews · 5.0 ★
★★★★★
runner

“Mostly use it on easy treadmill days. Five minutes with resistance and I can definitely feel my breathing working."

J
Jim
★★★★★
HYBRID athlete

"Not random drills, just one setup that actually makes sense for all the ways I do. Part of my morning routine now, and most days I just toss it in my bag, case and all. Simple and legit."

AC
Alex C.
Cycling, Hiking, Surfing, Running, Snowboarding
★★★★★
Surfer

“The paddle out used to cook me way too early. My breathing feels much steadier now, especially through longer sessions. I’ve also started doing a little breathwork before getting in.”

MS
Mia S.
★★★★★
Freerider

"Started using this thing daily a couple weeks before season. First big tour out, I was skinning uphill through deep snow faster than the guys while they were coughing their lungs out behind me lol. And I’m the shortest one in the crew."

RJ
Remy J.
★★★★★
hiker

“Honestly bought it for the trainer, but the case is way more useful than I expected. Clips straight onto my pack.
Breathwork at the top hits different ;)"

RM
Ryan M.
★★★★★
cyclist

“I do a few rounds before longer rides to warm up my breathing. Makes a huge difference.”

C
Chris
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Frequently
asked
questions

What’s included with my order?

Your order includes:

  • OXYCURL Breathing Trainer
  • Custom carry case
  • 8 device training protocols
  • 16 breathwork exercises

The protocols and exercises are unlocked via QR code inside the box.
Everything is designed to help you start simple, progress gradually, and train wherever you are.

What is OXYCURL Trainer?

OXYCURL Trainer is a respiratory muscle trainer (RMT) designed to strengthen the muscles you use to breathe. Think of it like a dumbbell for your breathing system. With consistent use, stronger breathing muscles can help improve endurance, control, and recovery over time — starting with just a few minutes a day.

How does OXYCURL work?

Place the mouthpiece in your mouth, set your resistance level, and breathe fully through the device. OXYCURL adds adjustable resistance to both inhale and exhale, making your diaphragm and respiratory muscles work harder — and stronger over time.

How often should I train?

Start with 5 minutes a day at a comfortable resistance level. First, focus on feeling your diaphragm and finding the right breathing pattern. As your breathing muscles adapt, gradually increase the load. Once the basics feel natural, move into our guided breathing protocols.

How soon will I feel results?

Many users feel a more open, activated breathing feeling after the first session. Most begin to notice a real difference within the first week, while measurable strength gains usually build over the first 4 weeks. The full training cycle is designed to progress over 12 weeks of consistent use.

Launch Offer

Start where performance begins.

Every effort starts with breath. Train the foundation.

Free US shipping·30-day returns·1-year warranty