Your hero 
journey 
starts here!

break the mould build habits that last!

Discover more

No more sacrifices. No more wasted time in crowded gyms.

It's NOT a sand-bag

It's a Swell-Fit bag.

Feel physically and mentally 

great while you build muscle 

and lose weight.

Life time warranty 

on all our limited edition 

founder bags

No hassle return policy

60 day Guarantee
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Feel physically and mentally great while you build muscle and lose weight. This is not just a fitness tool, this is a Wellness weapon

Future-Proof Fitness

Designed to last. Engineered for Progress. Train Smarter, anywhere, anytime.

1.

2nd layer TPU

2.

Swell-Air jacket (No Pump required)

3.

3rd layer - Water Housing

4.

Reinforced Ballistic material 

Under the covers... 

Innovation meets durability. The Swell Fit Bag is built to withstand the test of time—crafted with reinforced materials, triple-layer protection, and a pump-free design that eliminates weak points. Whether you're training at home, in the gym, or on the go, this is the only fitness tool you'll ever need. 

"A little transparency"
What makes us different?  
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
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THE SWELL FIT-BAG

THE SWELL FIT-BAG

100+ 5 Star Reviews

  • The Ultimate all-in-one mobile gym – A portable, weighted fitness tool that replaces bulky equipment, allowing you to train anywhere—home, hotels, outdoors, gym.

  • Strength, Stability & Mobility in One – Perfect for full-body workouts, combining strength training, balance work, and functional movement in one dynamic product.

  • Train Smarter, Move Better – Uses unstable weight technology (water) to engage stabilizer muscles, improve coordination, and enhance core strength.

  • Designed for Busy Lifestyles – Compact, easy to store, and built for people who want effective workouts without a gym—from beginners to pros.

Limited stock

  • Low stock - 47 items left

Move Better, Feel Stronger, Live Freely
We’re on a mission to help people reclaim their strength and freedom through movement.
Modern life is making us weaker, more sedentary, and disconnected from nature.
Swell Fitness is here to change that. Train anywhere. Move without limits.
Martin- Founder

👇 Find out more 👇

About us

Why US?

Features

Swell 
Fit-Bag

Other water weights

No Pump Needed

Triple-Layer Durability

Adjustable Instability

Portable for Travel

Yes - with additional pump

8 Handles

Reinforced outer layer

life-time warranty

Follow along workouts

Buy Now

30-day money-back guarantee included 

A word from the Pros!

Kira Blackman
"Never seen anything like this before"
Poster

@kmb259

Founder | Coach | power lifter/body builder

Kira a multi disciplined coach and competitor. She was very excited to discover the Swell fit-Bag and what it was capable off.

Tracy Leung
"So safe and a lot of fun"
Poster

@the.cray.t

Founder | Coach

Tracy explains how the Swell-Fit bag is a great tool for her female clients as its not so intimidating, its fun to use and also a nice sensory tool.

Anthony Chung
"Be at one with the water"
Poster

@chunganthony_holo

Founder | Coach

Anthony explains how to create harmony between body and mind with the Swell-Fit bag.

 

Jarrod Burton
"Explosive & dynamic moves 5*"
Poster

@Jarrod Burton

Founder | Coach

Jarrod demonstrating how the Swell-Fit bag can help atheletes with dynamic and explosive movements and patterns.

Jarrod Cardona
"Building confidence with instability"
Poster

@thecrazytrainer

Unconventional training coach

Crazy explains the importance of building foundations through functional movement patterns and how the Swell-Fit bag is a great tool to help his clients of all ages.

Jared Thomas
"A great tool to learn different flows"
Poster

@jaredmichaelthomas

Flow artist | Athlete | Coach

Jared explains the benefits of playing around doing different movement patterns on the mind and body. 

George-Anthony
"No more excuses, Fitness anywhere"
Poster

@Brainstorm.fitness

Veteran | Gym owner | Coach

George-Anthony explains how the Swell-Fit bag supports long term development by making fitness accessible due to its versatility and compact travel freindly design.

Junior Leoso
"A great safe tool to train the youth"
Poster

@junior.leoso

CEO | Landmine University

Gym Owner | Coach

Junior talks about how the Swell-Fit bags unique design makes training young atheletes a fun and safe experience.
SHOP NOW

30-day money-back guarantee included 

FAQ – Everything You Need to Know About the Swell Fit Bag

🛒 Product Questions

🔹 What makes the Swell Fit Bag different from regular weights?

✅ Unlike traditional dumbbells, the Swell Fit Bag moves with you, creating an unstable weight that activates more muscles in every movement.
✅ You control the weight (1-10kg) by adding water, making it perfect for all fitness levels.

🔹 Can I use it for different types of training?

✅ Yes! The Swell Fit Bag is designed for:

  • Strength & resistance training 
  • Core stability & balance 
  • HIIT & explosive movements 
  • Pilates & yoga 
  • Mobility & injury rehab 

No matter how you train, it adapts to you!

🔹 Can I take it with me when I travel?

✅ Absolutely! When empty, it packs down to 35 x 22cm and fits in a small carry case and weighs 0.5kg.

Perfect for home, gym, outdoors, hotel rooms, training on the go and 💡 even great in the pool.

💧 Water, Weight & Setup Questions

🔹 Can I easily change the water/weight?

✅ Yes! Adjusting the weight takes seconds:
1️⃣ Open the water valve and pour water in or out.
2️⃣ Adjust the air chamber for extra firmness.
3️⃣ Seal it and start training!

💡 You control the weight, making it perfect for progressive training.

🔹 Can I leave water in it, or do I need to empty it after every use?

✅ You can leave water inside without any issues.
✅ If storing for a long time, empty it to prevent bacteria build-up.

💡 Tip: A small bit of vinegar can prevent the water getting cloudy.

🔹 Can I use it in the sea or a swimming pool?

✅ Yes, but rinse with fresh water after use to remove salt or chlorine.
✅ The material is saltwater-resistant, but regular cleaning keeps it in top condition.

💡 Perfect for outdoor and beach workouts!

🔹 What if water gets into the air valve?

✅ No problem! Just:
1️⃣ Open both valves.
2️⃣ Shake the bag to release trapped water.
3️⃣ Let it dry before sealing.

💡 The air chamber is separate, so it won’t affect performance.

🔹 Can I add air to the water chamber?

✅ Yes, the water chamber can also be inflated. This is what makes our bag unique as the "Swell-Air jacket" changes the feel as well as offers extra reinforcement. Play around and see what you prefer best
✅ The air chamber adjusts the firmness, while the water weight remains consistent.

💡 This dual-chamber design makes it safer & more adaptable.

🚚 Shipping, Returns & Warranty

🔹 How fast is shipping?

📦 Ships next working day whenever possible.
UK Orders: 2-4 business days.
International Orders: 7-14 business days.

You’ll receive a tracking number as soon as your order ships!

🔹 What if I change my mind? Can I return it?

✅ Yes! We accept returns within 30 days if the bag is unused & in its original packaging.
Customers cover return shipping costs.

Email us at swellbeings@swellfitness.co.uk to start a return.

🔹 Does the Swell Fit Bag come with a warranty?

✅ Yes! We offer a Life-time guarantee on all ltd edition Swell Fit-Bags to say thank you for helping us during start up. 

This is a Manufacturer Warranty covering defects in materials & craftsmanship. (Please see terms and conditions)

If you believe your product is faulty, contact us for a quick resolution.

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About

Our mission

Sustainability

Blogs

Shop

Swell Fit-bag

Accessories

VIP Membership

TDEE Calculator

Support

How to Use

FAQs

Warranty & returns
Contact Us

Legal

Terms & Conditions

Privacy Policy

Refund Policy
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Copyright © 2022 GemThemes. All Rights Reserved.
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG
THE SWELL FIT-BAG

THE SWELL FIT-BAG

£89.95