Rank #4 in Best Training Sandbags 2026: 10 Ranked, Filled or Unfilled
Gravity Fitness Heavy Duty Sandbag, 50-150 kg
Price and rating as shown on Amazon when we collected them. Both change.
Gravity Fitness's Heavy Duty Sand Bag is the number four entry in this guide. It is a 1000D nylon sandbag with a Velcro filler bag inside, sold for strongman and functional training, priced at £49.95 and rated 4.4 out of 5 from 126 Amazon ratings. The listing names five sizes: 50 kg, 75 kg, 100 kg, 125 kg and 150 kg.
The finding worth stopping on is the gap between two weight numbers on the same page. The size field reads 50 kg. The item weight field reads 500 g. Both belong to the same listing, and they sit 49.5 kg apart. The bullets explain why: the bag does not arrive filled, so 50 kg is the load it is built to hold once you have bought and added your own sand, and 500 g is roughly what the parcel weighs on the doorstep. A reviewer who filled the 50 kg bag reported that it takes 50 kg just right with a kilo or two to spare — the capacity claim holds up, but only after a trip to the builders' merchant. Everything here is taken from the Amazon listing and its customer reviews, not from any test of our own.
How those 126 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £49.95 |
|---|---|
| Customer rating | 4.4 out of 5 from 126 ratings |
| Size as listed | 50 kg |
| Item weight as listed | 500 g |
| Sizes named in the bullets | 50 kg, 75 kg, 100 kg, 125 kg and 150 kg |
| Outer material | Nylon, 1000D with reinforced stitching |
| Sand included | No — the bullets state the bags do not come filled with sand |
| Team name (as listed) | Pro Wrestling League |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Bought the 75kg version and it arrived promptly. Obviously if you weren't aware, the listing is for a flatpacked sandbag only - you have to provide your own sand. Would be unfair to ask postie to lug 100kg down the drive!The price seems quite steep with that in mind but its very competitive with the competitors so who am I to argue.The bag feels of a great quality and is a "bag within a bag" design and has a built in "funnel" and several fastening mechanisms so I don't feel like sand will come out. You can partially fill to start with and then upgrade over time - I started mine with 50kg as that's the weight I feel comfortable taking to the shoulder but I can add up to the 75kg capacity in time.I'd recommend the B&Q (or other retailers') kiln dried paving sand to fill it with. It's a little pricier than the sharp sand/play sand bags but as its already dry it means it's a doddle to pour into the bag and won't dry out and get lighter over time. I filled mine to weight by picking it up and standing on the bathroom scales with it - it's too wide to go on the scales on its own without obscuring the display so you need to lift it onto the scales then subtract your body weight.Training with it is a dream. It's a completely different type of weight that promotes a more full body strength. I like picking it up, getting it onto the knees, then getting it to the shoulder, but there are several workouts you can do with it including squats, and carrying it as far as you can etc. It feels a very high quality and I have no issues dropping it from shoulder height onto my garage's concrete floor, or my driveway's block pavers. No signs of wear etc.”
Verified purchase“Very happy with the sand bag. Seems very robust and will take 50kg just right. Could squeeze another 1-2kg in but not needed. I've added a pic to make that comment on capacity redundant. Good addition to training. Uploaded a pic 3month on, going strong with no issues. Nice flex to the bag while still being firm. Would happily put it side by side with the Cerberus bag quality wise.”
What it is up against
The rivals it was ranked against in Best Training Sandbags 2026: 10 Ranked, Filled or Unfilled.
Questions people ask
Does the Gravity Fitness sandbag arrive filled with sand?
No. The bullets state plainly that bags do not come filled with sand, so you supply your own.
The listing says 50 kg. Is that what gets delivered?
No. The size field reads 50 kg while the item weight field on the same listing reads 500 g. The 50 kg is the load the bag is built to carry, not the weight that ships.
What sizes does the Gravity Fitness Heavy Duty Sand Bag come in?
The bullets list five: 50 kg, 75 kg, 100 kg, 125 kg and 150 kg.
What is the Gravity Fitness sandbag made of?
1000D nylon with reinforced stitching, a reinforced zip, triple stitching and a Velcro filler bag, according to the listing.
Who is the Gravity Fitness sandbag aimed at?
The listing says it suits beginners through to elite athletes and is designed for strongman and functional strength sessions, including squats, lunges, carries and cleans.
How much does the Gravity Fitness sandbag cost?
£49.95 as listed, with a 4.4 out of 5 rating from 126 Amazon ratings.
Comments
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