Gym In A Box®

BodyTone StimFit™ Power Shirt

Regular price $699.00 Sale price $329.00
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FREE SHIPPING FROM BEVERLY HILLS, CA. Shipping details.
CHRIS CUOMO’S FAVORITESGYM IN A BOX®

BUILD A STRONGER-LOOKING UPPER BODY

  • Activate arms, shoulders, back and abs for a firmer, more defined upper-body look.
  • Adjust independent channels and intensity to suit your comfort.
  • Complete a wireless 15-minute session without a gym setup.

Choose your size and train your upper body on your schedule.

U.S. PATENTED • AS SEEN ON TV • SHIPS FROM BEVERLY HILLS

NOT A REGULAR WORKOUT SHIRT.

A HIGH-TECH UPPER-BODY ACTIVATION WEARABLE.

BodyTone™ integrates 10 activation pads and independent channels for the arms, back, shoulders, abs and core — not ordinary activewear.

BodyTone StimFit™ Power Shirt.

Wearable upper-body muscle activation with patented ToneUp15® StimFit Technology.

Target your arms, shoulders, back, abs and core with 10 integrated activation pads in convenient 15-minute sessions.

How It Works — In Plain Words

The BodyTone StimFit™ Power Shirt integrates 10 activation pads across your arms, shoulders, back, abs and core. The patented ToneUp15® StimFit signals cause your muscles to contract on their own — like doing push-ups, rows and crunches while you relax. Mist the contact pads and skin with water, wear the shirt snugly, select a program and gradually increase intensity. The contact-detection safety feature only activates with secure skin contact. Use in 15-minute sessions with consistent daily use. Individual results vary.

How This Technology Helps You

  • Where it works: Arms, shoulders, back, abs and core.
  • What it does: Integrated pads deliver adjustable ToneUp15® StimFit activation to upper-body muscle groups.
  • What that means for you: You get targeted upper-body muscle engagement in a 15-minute wearable session.

Simple routine: Mist the pads and skin, wear the shirt snugly, then choose your program and intensity.

Specifications

  • 10 strategically positioned activation pads
  • Targets arms, shoulders, back, abs and core
  • Multiple programs with adjustable intensity
  • Independent channels
  • Wireless and rechargeable controllers
  • 15-minute sessions
  • Hands-free, no wires or gel pads
  • Unisex sizing S–3XL; see size chart. For women and men (unisex).

What’s Included

  • BodyTone StimFit™ Power Shirt (with integrated activation pads)
  • Wireless controller(s)
  • USB charging cable(s)
  • User guide

How to Use

  1. Charge the controller(s) fully before first use.
  2. Lightly mist the contact pads and your skin with water.
  3. Wear the shirt snugly for secure skin contact.
  4. Power on, select a program, then increase intensity gradually.
  5. Complete the 15-minute session.

Contact-detection safety: The shirt only activates with secure skin contact.

Care and Safety

Hand wash according to care instructions using a mild detergent, no bleach; remove controller(s) before washing.

State-of-the-Art Muscle Technology—Designed for Real Life

GYM IN A BOX® brings professional-inspired upper-body activation into a wearable shirt you can use at home — without the gym commute or studio fees.

Add to cart — activate your upper body in 15 minutes today.

IMPORTANT SAFETY INFORMATION

Adult use only. Do not use during pregnancy or with a pacemaker or implanted electronic device.

CONSULT YOUR DOCTOR: If you have a medical condition, an implanted device, or any concerns about whether this product is appropriate for you, consult your doctor before use.

GYM IN A BOX® consumer fitness devices are intended for fitness and wellness use and are not intended to diagnose, treat, cure, or prevent any disease or medical condition. Individual experiences and results may vary.

PATENTED TECHNOLOGY • CREATED BY CRISTIANI'S BALANCE FITNESS & NUTRITION, LLC

Our proprietary wearable technology is protected by U.S. patents, including U.S. Utility Patent No. 11,925,799 B2 and U.S. Design Patent No. D846,836 S.

GYM IN A BOX® USA | ToneUp15® StimFit Technology

Designed and developed in the USA • Established 2015.

What is GYM IN A BOX®?

GYM IN A BOX® is wearable muscle-activation technology from Beverly Hills, since 2015 — and As Seen On TV. Our belts, apparel and devices run on patented ToneUp15® Pulse Body StimFit Technology: wireless, no gel pads, worn on bare skin. Home, work or travel — no gym required.

How does it work?

Press the button on the wireless controller. Gentle microcurrent pulses make your muscles contract on their own — real muscle work while you go about your day. Modes are preset pulse patterns, intensity levels are strength: start low, increase gradually.

How long is a session?

One toning session is 15 minutes — that's our recommended usage for one session, and it's what ToneUp15® is built around. Your device shuts off automatically when the session ends. Some wearables run longer cycles — the PowerPants and the PowerShirt, for example. You can use your device for up to two sessions a day; just follow the instructions for your specific device.

Do I wear it over clothing?

No — the devices need direct skin contact, so wear yours on bare skin, never over clothing. Once it is in place, your clothes can go over the device.

What does it feel like?

A tingling, pulsing sensation as your muscles contract — the stimulation working, not vibration. Start low; increase gradually, only when the device sits correctly and feels comfortable.

Who should not use it?

For adult use only. Do not use during pregnancy, and do not use with a pacemaker, defibrillator or another implanted electronic device — and never while driving, sleeping or bathing. With any medical condition or concern, consult your physician before use.

GYM IN A BOX® consumer fitness devices are intended for fitness and wellness use and are not intended to diagnose, treat, cure, or prevent any disease or medical condition. Individual experiences and results may vary.

How do I choose my size?

Use the size guide on each product page. SlimCore™ is one size, fits S–XXL. Do not size down for extra compression — the zones must sit correctly against your skin.

How long do I charge it?

About 90 minutes for a full charge before first use, using the supplied accessories. Keep controllers away from water.

Why don't I feel it working?

Check the charge and placement, and make sure the contact areas sit fully against your skin. Many systems have load detection and will not activate otherwise; that is a safety feature, not a defect. Still stuck? Email us a photo or short video of your setup.

How do I clean my wearable?

Remove the controller and electronics first. Hand wash only where your product's care instructions allow, keep electronics away from moisture, and air dry. Never put a controller in water, a washing machine or a dryer.

What are the shipping times?

FREE U.S. shipping. Orders ship from Beverly Hills, California — most deliveries arrive within 5–7 working days, with tracking when your order ships.

Can I pay in installments?

Yes — shop now, pay later, with interest-free installment options at checkout.

What is the return policy?

Eligible regular-price items may be returned within 30 days, unused and in their original packaging. A return authorization is required first, and a $39 return-processing fee applies (restocking, repacking and outbound shipping). Stated plainly: sale, clearance, promotional and discounted purchases — including orders placed with a discount code — are final sale. Once your return is authorized, we will give you the return address and instructions.

How do I contact you?

Email our U.S.-based support team at info@gyminabox.la.

Customer Reviews

Based on 3 reviews
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Sam
NO MORE BACK PAIN This technology is legit

I got this shirt by GYM IN A BOX a few weeks ago and already lost 2 inches off of my love handles and my BACK PAIN IS LITERALLY GONE! I assume it is from the contractions caused by the toning technology boosters, it is insane. Back is already much stronger and also works great on my biceps. Absolutely recommend this power shirt, I'll order the pants as well

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Antonio
No more back pain

Been using this smart shirt by GYM IN A BOX for 3 weeks and the back pain I was suffering from almost 10 years is COMPLETELY GONE! This muscle stimulation technology is mind boggling I never thought I would find anything that helps me relieve the pain. Plus I got stronger muscles and less fat, awesome side effect! Pure magic . So happy!! Best purchase I ever made and so much cheaper than the chiropractor!!

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Seth
Got it as soon as it dropped

This shirt is the GOAT, the contractions are so strong you could never achieve this kind of muscle contractions in a conventional training session in the gym . It’s amazing fir everyone who wants to bring their muscle tone and fat burns to the next level . 5 stars and more

Customer Reviews

Based on 3 reviews Write a review