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

In this review of the RDX sandbag 25-75 LB unfilled model, the bottom line is simple: it is a practical, adaptable training tool for users who want a customizable weighted bag without prefilled materials. The reviewer finds the biggest reason to buy is the flexibility to choose filler and fine-tune weight in two inner bags, which makes it easy to progress strength work and switch between exercises. The bag's heavy Cordura construction and multiple handles make it feel like a gym-grade item, while the unfilled format keeps shipping cost and weight down for home users.

Key Features

• Unfilled design: Two inner unfilled bags allow precise weight adjustment and simple loading with playground sand or pea gravel to suit personal goals.
• Durable fabric: 1200D Cordura outer material with a nylon coating provides water resistance and a tough shell for repeated lifting and slamming.
• Leak protection: Inner filler bags use the same water-resistant fabric and double hook-and-loop closure to reduce the chance of sand escaping during workouts.
• Eight handles: Strategically placed handles let the user grip, carry, throw, and transition the bag cleanly across a range of lifts and carrying drills.
• Reinforced hardware: Heavy-duty zipper and cross-stitched seams increase longevity under heavy use and repeated handling.
• Adjustable capacity: Designed to cover 25-75 LB for this size, offering a broad range from beginner to intermediate training loads.

Who It's For

The 25-75 LB RDX sandbag is best for home gym owners, functional fitness athletes, and strength trainees who prefer to customize load and filler type; it supports a range of exercises from squats and lunges to slams and carries. Its unfilled design will particularly suit people who want to control exact weight, transport lighter packages before filling, or use different fillers for specific workouts.

Those who should look elsewhere include lifters who want a ready-to-use, prefilled option or athletes who need an extremely lightweight travel bag; also, users who expect a soft, cushioned cover for repeated heavy slams may prefer a purpose-built slam bag with extra padding.

Pros & Cons

Pros

• True adjustable weight via two inner bags gives versatility across many exercises.
• Robust 1200D Cordura build and reinforced stitching feel like gym-grade construction.
• Eight handles enable a wide variety of grips and movement patterns for functional training.

Cons

• Arrives unfilled, so purchaser must source and fill sand or gravel before use.
• Some customers report mixed durability impressions over long-term heavy use, so expect normal wear on handles or seams with very frequent slamming.

Specifications

Our Verdict

The RDX 25-75 LB unfilled sandbag is a sensible buy for strength trainees who want a durable, adjustable tool for home or garage workouts; its Cordura shell, multiple handles, and dual inner bags deliver strong value for progressive loading. Buyers should be prepared to source and fill their own sand or gravel and monitor wear if using very aggressively.

Frequently Asked Questions

Does the bag come filled?
No, this model ships unfilled so users can choose their preferred filler and exact weight.

What filler works best?
Playground sand or pea gravel are recommended; avoid sharp rocky mixes that can tear the fabric or create an uncomfortable feel.

How many inner bags are in the medium size?
The medium (25-75 LB) size includes two inner unfilled bags for weight adjustment.