Meet your go-anywhere, does-everything, multi- functional fitness partner.

Let’s be real. You don’t need another piece of gym kit gathering dust—or to invest in a million different options. That’s why we’ve created a multi-tasking hero you’ll reach for (or throw, or curl, or squat), again and again.

One sandbag, four adjustable weights = limitless workouts. From your living room to the park, The55 makes functional fitness ridiculously simple. Here’s the full story behind our innovative design.

Let’s back up. What’s The55 multi-weighted sandbag?

Before we get into the BTS, here’s what you need to know about our weighted sandbag:

The55 is an all-in-one, multi-weighted sandbag that’s changing the game in functional fitness.

Fill it with sand, rocks, or water bottles for a custom load, or grab our pre-filled 25kg sandbag (complete with 4 x 6kg inserts), ready to train right out of the box.

It’s a gym in a bag that works as hard as you do.

Fill it. Lift it. Squat it.

Unfilled = load up with your own weight
Prefilled = Ready out the box with 4 x weights (6kg, 12kg, 18kg & 25kg)

unfilled multi weighted bag, sandbag, weighted fitness sandbag, powerbag-min

THE ULTRA-CUSTOM

Unfilled 4 Chamber Multi Weighted Sandbag

The ultra-custom functional training tool for serious flexibility. Fill it yourself with sand, rocks, or gravel to create the perfect weight, and pack it up easily to take your workout to-go.

Unfilled sandbag, exercise Sandbag 25KG

THE SIGNATURE

Prefilled Multi Weighted Exercise Sandbag 5KG – 20KG

Our best seller, ready to go. This prefilled sandbag comes with 4 adjustable inserts, so you can train at a weight that works for you including 5kg, 10kg, 15kg, 20kg – straight out of the box.

OUR STORY

15+ years in the making…

2009 - THE ORIGIN STORY
2009 - THE ORIGIN STORY

Born on the battlefield

Our founder, part of the Royal Army Physical Training Corps, was deployed in Afghanistan when he spotted a gap in field training equipment.

Inspired by a travel-ready toiletry bag (you know, the one with all the zips), he called in reinforcements: his mum and her sewing machine. Our first prototype? A pillowcase. Yes, really.

2013 - MILITARY MILESTONE
2013 - MILITARY MILESTONE

Battle Bag Deployed

With a few hundred tweaks and a whole lot of testing, that humble pillowcase became “The Battle Bag”.

It didn’t just make the cut—it smashed it.

Patent-protected and army-approved, over 800+ bags were deployed across military units.

2021 - FIELD TO FUNCTIONAL FITNESS
2021 - FIELD TO FUNCTIONAL FITNESS

The55 Launches

Then we thought, why should the military have all the fun? After rolling out the Battle Bag in gyms across the UK, we found a new army of followers—functional fitness fans.

That’s when The55 was born, bringing the same military-grade durability and all-in-one functionality to the masses.

COMING SOON - LOOKING AHEAD
COMING SOON - LOOKING AHEAD

The55 Goes Global

We’re taking The55 beyond the battlefield. Next stops: America and the UAE. Ready to train anywhere, anytime.

Behind the name: The55

Why “55”?

multi functional fitness partner

When our sandbag is fully loaded, you’ve got 55lbs of pure power *mic bag drop*

The55 Sandbag Rolled up

Can’t shake our military roots. 55°N is the latitude of Britain, where it all began.

multi weighted bag, the55 sandbag

It’s got a ring to it, no?

Switch up your workout in seconds.

Watch to see how easy you can adjust the weight, intensity, and movement.

Ditch the clutter

No more messy home gyms. Our bag folds and rolls, to fit in the tightest of spaces (hello, under the bed). Who needs multiple sandbags when one does it all?

Train anywhere, anytime

That hotel gym? Yeah, it’ll be suss. With The55, your functional fitness routine stays on track—wherever you are.

Full-body fitness

Squats, curls, deadlifts, presses, we can keep going but you’ll be here a while. Our sandbag can hit every muscle. Now, the next move is yours.

Absolute game-changing bit of kit, I won’t be without mine!

I have known Chris Leare for some time now being ex forces myself, Chris introduced me to The55, and I started training Beginning of April when I got my 55, haven’t looked back since, great piece of kit, I have done lots of live sessions...
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Paul Evans
I have known Chris Leare for some time now being ex forces myself, Chris introduced me to The55, and I started training Beginning of April when I got my 55, haven’t looked back since, great piece of kit, I have done lots of live sessions which are Top notch, as well as the other sessions that have been designed, as well my own 1s that I designed, I am a lot stronger my body is in great shape, I have been training hard for the last 8 months, you can certainly see the results, I would recommend the 55 to anyone.
Paul Evans
Excellent piece of kit. Versatile and worth its weight in gold during recent times. Highly recommend for those people that travel frequently or not as the case may be.
Sebastian Miles
Excellent piece of kit. Versatile and worth its weight in gold during recent times. Highly recommend for those people that travel frequently or not as the case may be.
Sebastian Miles
Flatpacks so easy, l always take my 55 away with me on deployments. Really robust material, and so easy to add and drop weight because of the ergonomic design. This helps you progress or regress on form when needed. Great bit of kit designed for...
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Flatpacks so easy, l always take my 55 away with me on deployments. Really robust material, and so easy to add and drop weight because of the ergonomic design. This helps you progress or regress on form when needed. Great bit of kit designed for everyone. Highly recommend, thank you The55 💪
An absolute game changing bit of kit for me. I spent nearly a year out sorting a physical injury. When I returned I was as heavy...
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Stewart Farrell
An absolute game changing bit of kit for me. I spent nearly a year out sorting a physical injury. When I returned I was as heavy as I’d ever been and was genuinely unfit. I invested in the battle bag and haven’t looked back since. 8 months in and I’ve lost nearly a stone, and have packed in muscle and strength. I get bored of gyms but this is a complete gym I can take with me as I travel the country with work. Fantastic product with absolutely outstanding support. Over 35 intelligent complete body work outs and a friendly and knowledgeable community to provide help and advice. I won’t be without mine!
Stewart Farrell
So, the55 has most definitely changed the way I think and train. It's even taken me back to my Armed Forces days. The weekly lives, training and programs are second to none. This is a versatile piece of kit that can be taken anywhere, anytime.... One Bag... No Limits. I'm ...
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Brian Belton
So, the55 has most definitely changed the way I think and train. It's even taken me back to my Armed Forces days. The weekly lives, training and programs are second to none. This is a versatile piece of kit that can be taken anywhere, anytime.... One Bag... No Limits. I'm so thankful for the adaptable training, help and continued support. If you haven't already.... GET ONE!
Brian Belton
I love the55! It's a fantastic bit of kit, and as a trainer and sports therapist I use it for prevention and recovering from injuries! It's easy to use, you can take it anywhere, fill it with your own weight, and get a great workout! I would definitely recommend the55, ...
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Boris
I love the55! It's a fantastic bit of kit, and as a trainer and sports therapist I use it for prevention and recovering from injuries! It's easy to use, you can take it anywhere, fill it with your own weight, and get a great workout! I would definitely recommend the55, go get one now!
Boris

Suffering from a bad case of no workout inspo?

Cue 30+ functional training workouts (and counting) from our favourite PTs. Plus, everything you need to know to up your training game

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Boost your workout with these Functional Training tips using The55 Fitness Sandbags. Perfect for fitness enthusiasts looking to enhance strength and performance!
Sandbag Exercises
Discover effective sandbag workouts and exercises with The55 Fitness Sandbags. Perfect for fitness enthusiasts looking to enhance strength and conditioning routines.
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