Pre-filled Multi-Weight Exercise Sandbag | 5KG – 20KG
Unlike your average sandbag—the one that comes in multiple sizes, takes up too much space, and ends up as a “decorative” doorstop—our multi-functional sandbag gives you four weights in one. At-home gym clutter, be gone!
Complete with four pre-loaded 5kg inserts, adjusting the weight is as simple as unzipping a compartment to strip out or add weight in seconds for a custom workout, everytime. Whether you’re lifting, squatting, or carrying, this sandbag over delivers on all your functional fitness plans straight out of the box—no set-up needed.
Designed to tackle strength, balance, and endurance, the only limit is your imagination (but we have workout inspo for that too…)
£134.99 – £179.99
Features
No need to prepare or fill—this is good to go out of the box. You’ll find four 6kg inserts preloaded, making it easy to adjust the weight based on the day’s training program - or freestyle it, whatever your vibe.
Versatile, multi-functional design: Squat, press, carry, curl, lift, drop, swing… we could go on and on, but you get the gist. This all-in-one sandbag adapts to your full-body workout without the hassle of switching equipment.
Built for durability: Made from military-grade Cordura-600D with double stitching, this sandbag is designed to handle the most intense workouts, day after day. And we’re so confident it won’t rip or snap, it comes with a lifelong warranty.
Spec + Material
Capacity: Adjustable weight, pre-loaded with 25kg, with removable inserts for lighter training.
Weight (Empty): 1.3kg.
Weight options: 5kg, 10kg, 15kg, 20kg.
Pre-filled inserts: 4 x 5kg sandbag inserts included (60cm x 16cm).
Made in the UK: Proudly made for long-lasting performance.
Machine Washable: Yes, just remove the inserts and toss it in the wash.
7 handles: From extra long wide handles to lift from the floor to shoulder straps for carrying, you can do everything on your functional fitness workout plan in one place.
Returns + Shipping
For international delivery charges, visit our shipping and returns page
Our Guarantee
(We’ve never had one sent back to us. Just saying.)
Switching up your workout just got easy!
One weighted bag. Four adjustable weights.
Multi-functional, all-in-one exercise sandbag that can be loaded up to 25kg
Preloaded and ready to train from the word GO
Load it up to a weight that works for you and strip it back out, all in a matter of seconds (OK, zips).
Military-grade spec
Tested by the army on the daily, our bag has been in the field putting in the work.
Life-long warranty, so give it your best shot
Go as hard as you want, we dare you.
Curl it. Carry it. Chuck it.
Limitless workouts to keep things interesting (and challenging!)
Innovative, patent-protected design
You won’t find this piece of kit anywhere else. And if you do, our legal team will have an absolute field day.
Meet the multi-functional hero saving you from boringrinse-and-repeat workouts
Single grip for stability
For core-strengthening exercises reach for these — best for suitcase squats and farmers carries
Narrow grip for arm gains
Get precise with your bicep curls and overhead tricep extensions for targeted arm workouts
Medium grip to squat it like its hot
Use these won’t-budge handles on your shoulders during lower-body moves like squats and lunges
Wide grip for added control
800+ (and counting!) on the field.
Born on the battlefield, built for you. Our military-grade design was created by veterans to make your functional fitness training tough, adaptable, and built to last.
Whether you’re training in front of the telly or pushing it outdoors in rough terrain, our bag has got you covered.
The55 fitness sandbag FAQs.
What is the maximum weight of the55 Sandbags?
Are The55's pre filled sandbags kit suitable for beginners?
Does the pre-filled come filled with sand?
Yes, it’s already fully loaded up with 4 x 5kg inserts – we’ve done it all for you. All that’s left for you to do i you can adjust your workout in seconds (just unzip and you’re good to go) and all in one place.
What exercises can I do with a sandbag fitness bag?
We might be here a while. OK, strap in: squats, deadlifts, swings, pulls, pushes, burpees, walking, sprinting… we know the possibilities can feel infinite, which is why we’ve got handy workouts over on our blog. Or follow us on socials for live workouts with our favourite PTs.
Do you offer international shipping for all orders?
Which multi-weight bag is right for me?
It really depends on your ability and how custom you want the weight to be. To workout with lighter weights, you might prefer our unfilled bag to load it up with whatever you have to hand. For an all-in-one, ready-to-roll solution – our signature pre-filled sandbag gives you added weight of up to 20kg (in increments of 5kg, 10kg, 15kg, 20kg).
Are the55 sandbags good for building muscle?
We don’t call it an all-in-one for nothing. Whatever your fitness goal—toning, strengthening, or muscle-building—our sandbag was designed to give you a full-body workout. It’s a gym in a bag. For workout inspo, check out our blog.
David –
The best bit of kit to travel with, I train with mine full at home and take it empty when I travel for work and holidays. I highly recommend.
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.