RDX

RX3 Auto-Lock Lifting Belt

A contoured nylon-and-polyester training belt with a 6.5-inch padded back. Its tension-locking roller buckle works alongside a hook-and-loop strap, giving an alternative closure and fabric feel to a leather prong belt.

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RDX black RX3 fabric lifting belt with red RX3 label, padded contoured back and roller-buckle strap.
Straps & lifting belts

Product features.

A good fit for Lifters who prefer a fabric belt with adjustable strap tension and a broad padded back.

  • The strap permits continuous fit adjustment instead of limiting the closure to pre-punched holes.
  • A tension-based roller buckle and hook-and-loop fastening provide two parts to the closure system.
  • The contoured back combines a broad 6.5-inch panel with narrower sides, which may suit people comparing padded fabric and leather designs.
The trade-off

The broad back can feel bulky on a shorter torso, and hook-and-loop performance depends on a clean, well-engaged closure. This fabric design does not have the same feel as a thick leather powerlifting belt.

Check the exact version, pack size and seller terms before buying.

The details that matter.

Checked variant
Black; Medium
Model
RX3 Auto-Lock
Outer materials
Nylon and polyester
Back height
6.5 inches / approximately 16.5 cm
Padding named by retailer
Compressed EVA and SpongEX
Closure
Tension-locking roller buckle plus hook-and-loop strap
  • Use the current RX3 waist-measurement chart rather than trouser size; the selected Medium example is not a universal fit.
  • Check that the broad padded section clears the ribs and hips in the movements you intend to train.
  • Keep the closure free of lint and inspect the buckle and stitching. Confirm competition equipment rules separately if entering a meet.

How we assessed it.

Comparison of published Amazon UK specifications, exact selected variants and product photographs, with manufacturer details where cited. Amazon ratings and explicit past-month purchase badges were checked on 6 November 2026; these are changing retailer snapshots, not performance tests. Gram Health has not physically tested this product.

Retailer source: Amazon UK: RDX RX3 Auto-Lock Lifting Belt, Black / Medium · Details checked 2026-11-06.

These features explain the choice; individual fit, taste and health suitability can differ. Current stock, price and seller terms belong to the specific listing.

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