As featured in Golf DigestRead the feature

End daily back stiffness

The L1 pairs far infrared with topical heat in a cordless wrap you can wear under your clothes. Warm up faster, sit longer, and move without the morning tightness.

4.8 / 5 from 110 reviews
  • Satisfaction guaranteed
  • 30-day returns
  • FSA/HSA eligible

Trusted where it counts

The trusted product of current and former pro athletes across the NFL, MLB, PGA, Tennis, and more.

Official Rewards Partner of the NFLPA
Official Rewards Partner of the NFLPAThrough our NFLPA partner program, former pros use the L1 to manage back pain after careers of taking hits, and the number keeps growing.
PGA of America, Northern CaliforniaPGA of America, Northern California
PGA of America, Northern TexasPGA of America, Northern Texas
PGA MagazinePGA Magazine
ThunderThunder
FriarsFriars

Partnerships and media features current as of 2026. Athlete use does not imply endorsement by any league.

For pain and performance

The Infraway L1

Powerful far infrared heat, built to move with you. Cordless and under an inch thick, so it disappears under your clothes and goes wherever you do. Serious relief without sitting still.

$199One-time purchase. No subscription.
Choose your size

See full product details and specs

Customizable heat

Set the exact temperature and the exact time, down to the degree and the minute. Not low, medium, high.

App control

The Infraway app connects over Bluetooth, so you can adjust heat without taking anything off.

Infrared fabric

4-way stretch and antimicrobial far infrared fabric, so it moves the way you do and does not hold odor.

Cordless and flat

Under an inch thick with no wires, so it disappears under a shirt at your desk or on the course.

Dual-heat technology

Surface heat stops at the skin. The L1 reaches muscle.

Topical heat warms the surface. Far infrared travels to muscle level. The L1 runs both at once, which is why the relief outlasts the session.

Read the science

SKIN FAT MUSCLE TOPICAL HEAT FAR INFRARED Surface only SKIN FAT MUSCLE TOPICAL HEAT FAR INFRARED Surface only

In practice

Where people actually wear it

The L1 was built for the lower back, but the people who own one keep finding new places to put it.

On the course

On the course

Wear it on the range and keep it on through the round, so the lower back stays as loose on eighteen as it was on one.

  • Golf
  • Warm-up
  • Mobility
At your desk

At your desk

Flat enough to sit under a shirt all afternoon, so a long stretch in a chair does not end with a locked-up back.

  • Desk
  • Long sits
  • Relief
Before you play

Before you play

Ten minutes before you step on court, so you start the first point already warm instead of playing your way into it.

  • Warm-up
  • Pickleball
  • Tennis
On the move

On the move

Cordless and under an inch thick, so it goes through security, onto the plane, and into the car without a second thought.

  • Travel
  • Flights
  • Long drives
Morning and night

Morning and night

Loosen up before the day starts and wind down once it is over. Fifteen minutes at each end is the whole routine.

  • Morning
  • Evening
  • Recovery
Through your cycle

Through your cycle

Steady, adjustable warmth across the lower back and abdomen, with no cord tying you to the couch.

  • Comfort
  • Relief
  • Relax

Reviews

What owners say after 30 days

4.8

from 110 reviews

Customer Reviews

Overall rating: 4.8 / 5 from 120 reviews.

Start every day with Infraway belt, do my morning chair yoga. The days that I go hit golf balls or play, use for warm up. I believe that it is helping my recovery from knee replacement. That is because my exercise program of recovery needs help from sitting around too much after surgery.

L1 Lower Back Wearable Heat Pad

I have had a fusion of L3, 4, 5, Pain from stenosis is gone but have muscle pain and spasms sometimes. This unit has reduced stiffness in my lower back and relaxes my back when it spasms. If you are suffering from lower back muscle strain and tension, I highly recommend you try the L1.

L1 Lower Back Wearable Heat Pad

I’ve got 8 sessions on the L1 now, it’s deep, focused heat to loosen up your lower back. Easy to toggle the temperature and session time on the app. Product and service, both superb!

L1 Lower Back Wearable Heat Pad

only reason didn't give 5 stars is the battery doesn't last very long.

L1 Lower Back Wearable Heat Pad

Store owner replied: Hey Dale! Sending you an email to talk further on this. Want to make sure you’re getting the best experience and that the product is performing as expected.

There are no instructions on how to connect the extension for bigger waists. I am not using it.

L1 Lower Back Wearable Heat Pad

It works great!

L1 Extender

It is perfect for my back issues, so light and compact, sometimes I forget I am wearing it.

L1 Lower Back Wearable Heat Pad

This product is a game changer. All the effectiveness of a traditional heating pad with complete mobility and digital control on your phone. Wear it anywhere! ITS AMAZING

L1 Lower Back Wearable Heat Pad

The battery runs out quicker than I would have expected. Having to shake the unit every time to get started is a hack. Not so technically thought out, it seems.

L1 Lower Back Wearable Heat Pad

Store owner replied: Writing this note for future customers: reach out to us!! if you are not happy with your purchase or seeing issues we will take care of you. A real person will jump on the phone with you and find a solution. Hey Jim. Would love to understand more about your experience. Sending you an email right now! Infraway Support

Easy to use with app. Portable and flexible to use on different parts of the back, hip and hamstrings.

L1 Lower Back Wearable Heat Pad

I still have stiffness and pain

L1 Lower Back Wearable Heat Pad (Golf)

Store owner replied: Hi Richard! Emailing you now to find a time to speak about your experience.

Easy to connect. Simple instructions. Heats up immediately. Wore it home for 30 minutes of driving time at 120 degrees. Really reduced lower back pain. Love it!

L1 Lower Back Wearable Heat Pad

I use this product after my round of golf or after a gym session …. It keeps my back from getting stiff , very easy to use and keep a custom heat number on your back …

L1 Lower Back Wearable Heat Pad (Golf)

Only had for a few days. Heats up quickly but do wish the battery lasted longer. Forgot to charge so a session ended sooner than I wanted because I had to charge as the battery went to zero. Just need to build the habit of checking first and learning how much battery is used per session.

L1 Lower Back Wearable Heat Pad

I really like it. It helps my hamstring injury that interferes with my sciatic nerve. I like it because I am a golfer and it helps loosen up my lower back in general if you wear it on occasion every day it helps with mobility.

L1 Lower Back Wearable Heat Pad

Infraway and the team there has an amazing product and even better support and customer service. The L1 got delivered so fast and I have been using it religiously and has made the world of a difference with my low back problems!

L1 Lower Back Wearable Heat Pad

I really enjoy wearing this item. Gives me instant warmth. It fits well and it’s rechargeable. My wife and I share it.

L1 Lower Back Wearable Heat Pad (Golf)

Looks great, wears well, easy to charge and heats lower back quickly. Bottom line…less pain! Very happy with this product. Thank you!

L1 Lower Back Wearable Heat Pad

I've had low back pain due to disc and structural issues between L4/L5 and L5/S1 for the past 13 years. I've struggled through the pain and tightness over these years in an attempt to stay active and to be able to play golf. I was given the Infraway as a member/guest tee gift and didn't think much of it other than as another "heating pad" but this one is just different. It has targeted and focused heat that hits exactly where you need it, and the red light seems to help with tightness and soreness - I wear it to warm up, but also after any activity, or at the end of the day. It's been a great addition to my coping arsenal and has been a real game changer! Separately, I had an issue with the heating pad wrap - the founder/ceo, Max, personally corresponded with me and resolved the issue immediately. That type of personal attention to any issue, no matter the size, is how customer service is done correctly and how a business should be run! I highly recommend this product, and his company!

L1 Lower Back Wearable Heat Pad

A bold statement but in short, a miracle! My lower back was bad from a recent injury. A day after I used the product, I was almost 100% better; able to walk without pain.

L1 Lower Back Wearable Heat Pad

Heat feels good but pain still persists

L1 Lower Back Wearable Heat Pad

Store owner replied: Hey Thomas. Appreciate your feedback here. I don't think this will ever fully get rid of the pain, especially when it's structural, like mine is! I use the L1 to mitigate the symptoms of pain and make activities easier to do. I would love to learn how you're using it and help improve your experience. Sending you an email from hello@theinfraway.com right now to get in touch!

Before you buy

The questions we get most

Straight answers on battery life, sizing, and what happens if it is not for you.

Still have a question? Talk to us

How long does the battery last?

Up to 120 minutes on a single charge, depending on the temperature you select. Settings above 135F draw more power and reduce that. Most people get 80 to 100 minutes of real-world use per charge, and it recharges over USB-C with the included wall charger.

How do I know which size to order?

Standard fits a 25 to 40 inch waist. Extender fits 40 to 60 inches. Both are the same price. Measure where you would wear a belt, and size up if you fall between the two.

Can I really wear it under my clothes?

Yes. The L1 is under an inch thick and completely cordless, so it sits flat under a shirt or a waistband. It is made from 4-way stretch, antimicrobial far infrared fabric.

What temperature should I use?

120F to 130F for recovery and daily maintenance. 125F to 140F for warming up before activity. You set the exact degree and the exact duration in the free Infraway app.

What comes in the box, and when will it arrive?

The L1 wrap and heating pad, a carrying case, a USB-C wall charger, and the free Infraway app for iOS and Android. Orders are processed and shipped within 2 to 3 business days, with express options available at checkout.

What if it does not work for me?

Satisfaction guaranteed. You have 30 days to return it for a full refund or an exchange. If an item arrives defective or damaged, we cover return shipping.

Stop working around your back

One wearable. Two kinds of heat. Thirty days to decide whether it belongs in your routine.

Satisfaction guaranteed. 30-day returns. FSA/HSA eligible.