RDX Sandbag 25-75 LB Unfilled Power Bag - Adjustable Workout Sandbag

In this review the RDX 25-75 LB unfilled sandbag is evaluated for athletes and home gym users who want a customizable, heavy-duty training tool. The bottom line: this is a versatile, adjustable workout bag that lets users pick their own filler and fine-tune weight from light to challenging, making it best for functional strength, strongman drills, and conditioning circuits. The review focuses on build, handle layout, and practical filling advice, so buyers know what to expect when ordering the unfilled model.

Key Features

• Unfilled design: Allows complete control over weight and filler choice so lifters can use playground sand, pea gravel, or iron sand to reach the exact load they want.
• Durable 1200D Cordura: The outer bag and inner filler sleeves are made from heavy-duty Cordura fabric with a nylon coating for water resistance and longer lifespan in regular training.
• Multiple inner bags: This size ships with two inner unfilled bags so users can divide weight and adjust balance for varied movements.
• Eight strategic handles: A network of reinforced handles and cross stitching improves grip options and makes slams, carries, and cleans more controllable.
• Leak-resistant closures: Inner bags use double hook and loop strips and a heavy-duty zipper to reduce filler escape and keep sessions clean.
• Versatile training use: Designed for squats, presses, lunges, and throws to build core stability, grip strength, and conditioning.

Who It's For

This sandbag is best for intermediate to advanced trainees who want a single, adaptable tool for strength and conditioning: people doing strongman-style training, CrossFitters who include sandbag carries and slams, and home gym owners who prefer to control the filler material and weight increments. The unfilled format is ideal for those who already have access to sand, pea gravel, or other safe fillers and want an economical way to create progressive loads.

Beginners or users without easy access to appropriate filler should look elsewhere for prefilled or easily adjustable weight systems; likewise, anyone who intends to use very coarse, rocky gravel should avoid this bag since abrasive filler can shorten fabric life.

Pros & Cons

Pros

• Sturdy construction with 1200D Cordura gives a professional feel and solid handle support.
• Two inner sleeves in this size make incremental loading and balance adjustments straightforward.
• Eight handles enhance maneuverability for a wide range of movements and grip options.

Cons

• Some users report mixed durability experiences, so heavy abrasive filler or very high-frequency use can reveal weak points.
• Because it ships unfilled, buyers must source suitable filler, which adds time and cost before first use.

Specifications

Model size	Medium 25-75 LB
Filler	Sells unfilled; use playground sand, pea gravel, iron sand
Inner bags	Two unfilled inner sleeves
Outer material	1200 Denier Cordura with nylon lining
Handles	8 reinforced handles with cross stitching
Closure	Heavy-duty zipper and double hook and loop inner closures

Our Verdict

The RDX 25-75 LB unfilled sandbag is a flexible, cost-effective choice for trainees who want to custom-load a durable training bag for slams, carries, and varied strength work. It represents strong value if you can provide appropriate filler and accept that extreme abrasive fill may reduce longevity; for many lifters this bag delivers the adaptability and handle options needed for progressive conditioning.

Frequently Asked Questions

What filler should I use?
Use playground sand, pea gravel, or iron sand for predictable weight and a smooth feel; avoid very coarse or sharp gravel that can abrade the fabric.

How many inner bags are included?
The medium 25-75 LB size includes two inner unfilled bags so you can split weight and adjust balance.

Is the bag water resistant?
The outer and inner bags are made from water-resistant Cordura with a nylon lining, and the inner sleeves have double closures to reduce leakage.