In-depth review
RDX Unfilled Heavy Bag Set Review (2027): The Bag, Chain, and Gloves in One Box
Full research review of the RDX unfilled 4 ft heavy bag set: shell and D rings, the included chain, gloves and mitts, fill recipes, and who should do this work.
RDX Unfilled Heavy Bag Set (4 ft)
An unfilled 4 foot bag sold as a set, with hanging chain, gloves, and mitts in the box, ready for your own fill recipe.
- Unfilled as sold; typically filled to about 70-100 lb with fabric and sand
- Filled weight
- 48 in (4 ft) traditional length
- Bag length
- Heavy duty synthetic shell with reinforced stitching
- Shell material
Our verdict
The RDX set is the thinking buyer bag in this category, packaged for people who hate accessory errands. The unfilled 4 foot shell trades an afternoon of packing for control over the single most personal spec a bag has: how it feels when you hit it. The hanging chain, training gloves, and punch mitts in the box mean the purchase is genuinely complete once the fill is in. The shell and D ring hardware are good enough that your fill, not the bag, will decide the result, and the final weight can be matched to a mount that a factory 100 lb bag would overwhelm. Its honest costs are effort and iteration: expect to train on it, adjust the fill, and settle it before it feels finished.
What we like
- Set format includes the hanging chain, training gloves, and punch mitts alongside the shell
- Fill recipe is yours: soft with fabric alone, firmer with sand bags distributed through it
- Reinforced stitching and D rings from an established combat sports brand, a step above generic unfilled shells
What to watch out for
- Final weight and feel depend entirely on your fill patience and materials
- Set gloves and mitts are starter grade; committed strikers will upgrade them
- Underfilled, it swings and folds on impact; the first fill is rarely the final fill
Who it is for
Home boxers and kickboxers who want density control and a complete starter kit, have access to fabric fill, and may need to keep final weight within a specific mount rating.
What the set actually includes
Alongside the unfilled shell, the box carries the steel hanging chain, a pair of training gloves, and punch mitts. That changes the buying maths: most unfilled bags quietly assume a separate chain purchase and a glove decision, while this set closes both. Treat the gloves and mitts as honest starter gear, good for the first season of technique work, rather than the last gloves you will buy.
Shell and hardware quality
The shell uses heavy synthetic material with reinforced stitching at the stress lines, and steel D rings that inspire more confidence than budget hardware. On an unfilled bag these details are the product, and they are the reason this bag ranks above cheaper shells that share its silhouette.
A fill recipe that works
Cut or shredded fabric, packed hard every few inches, forms the body. Small, well sealed sand bags placed along the core, never loose at the bottom, add weight where you want it. Leave headroom at the top for settling, train for two weeks, then top up and repack the strike zone. That cycle, done once, is the difference between a good home filled bag and a lumpy one.
Weight control as a feature
Filled with fabric alone the bag stays relatively light and forgiving. Add distributed sand and it climbs into the 90 to 100 lb feel class. That range lets a stand owner fill to a rating and a beam owner fill to a preference, from one product, which no filled bag can match.
Where owners go wrong
Underpacking, loose sand, and impatience. The negative feedback pattern is consistent: bags filled in twenty minutes feel wrong, and owners who repack properly usually revise their opinion. Budget the time as part of the price and the set rewards it.
Key specifications
- Filled weight
- Unfilled as sold; typically filled to about 70-100 lb with fabric and sand
- Bag length
- 48 in (4 ft) traditional length
- Shell material
- Heavy duty synthetic shell with reinforced stitching
- Mount and hardware
- Steel D rings with the hanging chain included in the set; mount rated above your final filled weight plus swing
What owners report
Commonly praised
- Having the chain and gloves in the box removes the accessory errands
- Shell and rings feel durable for the price
- Easy to hang empty and fill in place gradually
Common complaints
- Filling takes longer than expected, every time
- Sourcing enough clean fabric fill is its own errand
- Density varies if sand is not bagged and distributed carefully
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
Sources: RDX unfilled heavy bag set product documentation, Amazon listing specifications
Also consider
EverlastEverlast 100 lb Nevatear Heavy Bag
The filled classic: 100 lb of Nevatear covered bag, ready to hang and swing.
- Filled weight: 100 lb filled from the factory
- Bag length: About 48 in long, full size boxing length
Sources: Everlast Nevatear heavy bag product documentation, Amazon listing specifications
Check price on Amazonor add to your Amazon cartChoose the Nevatear if you want factory consistency and no fill labor, and your mount and delivery route can handle 100 lb. Read our Everlast 100 lb Nevatear Heavy Bag review
ProlastProlast Heavy Bag (Unfilled, 4 ft)
A heavy shell unfilled bag from a bag specialist, built to be filled firm and used hard.
- Filled weight: Unfilled as sold; the listing classes this 4 ft bag at 80 lb filled weight
- Bag length: 48 in (4 ft)
Sources: Prolast heavy bag product documentation, Amazon listing specifications
Check price on Amazonor add to your Amazon cartChoose the Prolast if you are an experienced striker who wants a heavier shell and a distinctly firm final bag.
Research-based assessment: manufacturer specifications and documentation, cross-checked against retailer listings and recurring themes in published owner feedback. We do not claim hands-on testing we have not performed.
FAQ
Hanging Heavy Bags questions, answered straight
Where do I get enough fabric fill?
Old clothes, towels, and blankets cut into strips are the classic source, supplemented by fabric offcuts. Avoid zippers, buttons, and hard items. Many owners collect fill for a few weeks before the bag arrives, which is the right order of operations.
Can I fill it with only sand?
No, and this is the most important warning in this review. Loose sand settles, compacts into a hard mass at the bottom, damages shells, and creates an injury risk surface. Sand belongs in small sealed bags distributed inside a fabric fill.
How do I know when the fill is right?
The bag holds a round shape, gives slightly under a committed strike without folding, and shows no soft pocket at your main strike height after a full session. If it folds, pack more. If wrists complain at clean technique, remove density.