1. Product Overview
The MUELLER Sports Medicine 4-in-1 Lumbar Back Brace with Hot/Cold Pack is designed to offer comprehensive support and pain relief for both upper and lower back issues. It is suitable for men and women experiencing conditions such as sciatica, back strains, and general back pain. This brace features an adjustable closure system for a secure and comfortable fit, a removable lumbar pad for enhanced comfort and versatility, and a double-layer design for targeted compression. Four flexible plastic stays provide additional stability, making it ideal for activities requiring extra back support, including heavy lifting. A removable hot/cold pack is included for added therapeutic relief.

Figure 1: Mueller 4-in-1 Lumbar Back Brace in use.
2. Key Features
- Targeted Compression: Adjustable double-layer design provides custom fit and compression to the abdomen and lower back.
- Comfortable & Removable Pad: Includes a versatile, removable lumbar pad for support and comfort, aiding in relief from back pain, sciatica, scoliosis, and strains.
- Easy to Use: Adjustable closure straps ensure easy application and a secure fit during physical activity.
- Hot/Cold Pack: Features a removable hot/cold pack for additional soothing and warmth.
- Enhanced Stability: Four lightweight, flexible plastic stays conform to the back, offering added support for heavy lifting or extra stability needs.

Figure 2: Key features of the back brace.
3. Sizing and Fit
The MUELLER 4-in-1 Lumbar Back Brace is designed as a one-size-fits-most product. It accommodates waist sizes from 38 inches to 48 inches (76.2 cm to 121.9 cm).
To ensure the correct size and fit, please measure around the widest part of your waist while standing in a relaxed position.

Figure 3: How to measure for proper fit.
4. Setup and Application
- Prepare the Brace: Ensure the brace is laid flat and the adjustable closure straps are open.
- Position the Brace: Wrap the main body of the brace around your lower back, ensuring the lumbar pad (if used) is centered on your spine.
- Secure the Primary Closure: Bring the main closure straps to the front and secure them firmly around your abdomen. The double-layer design allows for a custom fit.
- Adjust for Compression: Use the finger pockets on the outer straps to pull and tighten for desired compression and support. These straps allow for fine-tuning the fit.
- Insert Hot/Cold Pack (Optional): If using the hot/cold pack, place it into the designated mesh pocket at the back of the brace before applying.

Figure 4: Brace application and components.
5. Operating Instructions (Hot/Cold Pack)
The removable hot/cold pack provides therapeutic relief. Follow these instructions for proper use:
Cold Therapy - Freezer
- Place pack in freezer for 1.5 hours before use.
- Place pack inside Mueller Lumbar Back Brace pouch, or wrap pack in protective material.
- Apply Mueller Lumbar Back Brace to back with hot/cold pack inside, or apply wrapped pack to injured area in intervals of 15 minutes on, 15 minutes off.
Hot Therapy - Microwave
- Microwave pack on HIGH (100% power) for 20 seconds.
- Knead to distribute heat.
- Microwave pack for additional 20 seconds.
- If more heat is required, heat it an additional 10-second until desired temperature is reached.
- Allow pack to stand for 20 seconds before removing from microwave.
- Knead pack to distribute heat.
- Place pack inside Mueller Lumbar Back Brace pouch, or wrap pack in protective material.
- Apply Mueller Lumbar Back Brace to back with hot/cold pack inside, or apply wrapped pack to injured area in intervals of 15 minutes on, 15 minutes off.
Hot Therapy - Hot Water
- Place pack in hot water (max 60°C) for 10 – 15 minutes.
- Knead pad to distribute heat.
- Place pack inside Mueller Lumbar Back Brace pouch, or wrap pack in protective material.
- Apply Mueller Lumbar Back Brace to back with hot/cold pack inside, or apply wrapped pack to injured area in intervals of 15 minutes on, 15 minutes off.
WARNING: DO NOT APPLY DIRECTLY TO SKIN!
Place a barrier between the Hot/Cold pack and skin. For external use only. Do not use on infants. Always test the pack temperature prior to use. Do not place heavy objects on pack. Overheating may cause injury to person, including burns. Heating beyond suggested times may damage or ruin the pack. Use mild soap, alcohol or detergent to clean as needed. Do not use with topical analgesics. Do not boil. Do not ingest.

Figure 5: Hot/Cold Pack Usage Instructions.
6. Care and Maintenance
To maintain the effectiveness and longevity of your MUELLER Sports Medicine 4-in-1 Lumbar Back Brace, please follow these care instructions:
- Hand Wash Only: Hand wash the brace in cold water with mild soap.
- Do Not Bleach: Avoid using bleach or harsh detergents, as these can damage the material.
- Air Dry: Lay flat to air dry. Do not machine dry or iron.
- Avoid Direct Heat: Keep away from direct heat sources to prevent material degradation.
- Clean Hot/Cold Pack: The hot/cold pack can be cleaned with mild soap and water as needed.
7. Troubleshooting
While the MUELLER 4-in-1 Lumbar Back Brace is designed for durability and effective support, some common issues may arise:
- Velcro/Hook-and-Loop Fastener Wear: Over time, with frequent use and adjustments, the hook-and-loop fasteners may lose their grip. This is normal wear and tear. Ensure the fasteners are clean and free of lint or debris. If the grip significantly weakens, consider replacing the brace for optimal support.
- Discomfort or Skin Irritation: If you experience discomfort or skin irritation, ensure the brace is not overtightened. Wearing a thin t-shirt or camisole underneath the brace can help prevent direct skin contact and reduce irritation.
- Insufficient Support: Verify that the brace is correctly positioned and tightened according to the application instructions. Ensure the lumbar pad is properly inserted if additional support is desired.
8. Specifications
| Attribute | Value |
|---|---|
| Brand Name | MUELLER |
| Model Number | 66017 |
| Color | Black |
| Material | Plastic (for stays), Fabric (for brace) |
| Size | One Size (fits 38"-48" waist) |
| Item Weight | 0.77 Kilograms |
| Included Components | 1 Black Back Brace, 1 Hot/Cold Pack |
| Suggested Users | Unisex-adult |
| Specific Uses For Product | Back pain relief, support for strains, sprains, aching backs |
9. Warranty and Support
Mueller Sports Medicine has been a trusted leader in sports medicine for over 60 years, committed to helping individuals heal, reduce pain, and elevate performance. For any product inquiries or support needs, please contact Mueller Sports Medicine directly.
Manufacturer Contact Information: Mueller Sports Medicine