1. Introduction
This manual provides essential instructions for the proper use, setup, maintenance, and care of your Soman H3 Half Helmet. Please read this manual thoroughly before using your helmet to ensure maximum safety and product longevity. Retain this manual for future reference.

Image 1.1: Soman H3 Half Helmet, matte black finish.
2. Safety Information
Your safety is paramount. Adhere to the following guidelines:
- This helmet is designed to meet DOT FMVSS.218 safety standards. Always ensure the helmet is properly secured before riding.
- The Soman H3 Half Helmet is intended for use at speeds of 65 MPH and below. Do not exceed this speed limit while wearing this helmet.
- Ensure the helmet fits snugly and comfortably. An improperly fitted helmet may not provide adequate protection.
- Always fasten the dual D-ring chin strap securely.
- Never modify the helmet's structure, shell, or any components, as this may compromise its protective capabilities.

Image 2.1: DOT certification and key safety features.

Image 2.2: Recommended speed limit for helmet use.
3. Product Features
The Soman H3 Half Helmet incorporates several features for comfort and protection:
- Shell Material: Constructed from advanced thermoplastic Acrylonitrile Butadiene Styrene (ABS) for impact resistance.
- Impact Absorption: Features a high-density Expanded Polypropylene (EPP) layer for comfort fitting and energy absorption.
- Liner: Equipped with a comfortable inner liner that is removable and washable for hygiene.
- Visor: Includes an integrated smoke visor designed to provide 99% UV protection and reduce glare on sunny days.
- Adjustable Fit: A head size adjustment knob located at the rear allows for fine-tuning the internal fit by approximately 1 cm.
- Closure System: Utilizes a secure dual D-ring closure system.
- Lightweight Design: Weighs approximately 3.1 pounds (750+ grams) for reduced head pressure during rides.

Image 3.1: Internal construction layers for protection and comfort.

Image 3.2: Visor functionality and UV protection.
4. Setup
4.1. Measuring Head Size
To ensure a proper fit, measure your head circumference:
- Use a flexible tape measure.
- Wrap the tape measure around your head, approximately 1 cm above your ears and 2 cm above your eyebrows.
- Note the measurement in inches.
4.2. Choosing the Correct Size
Refer to the size guide below to select the appropriate helmet size based on your head circumference measurement:

Image 4.1: Head size measurement and corresponding helmet sizes.
4.3. Adjusting Head Fit
The helmet features a head size adjustment knob on the back. Rotate this knob to tighten or loosen the inner liner, allowing for a more customized and secure fit. The adjustment range is approximately 1 cm.
5. Operating Instructions
5.1. Wearing the Helmet
- Place the helmet on your head, ensuring it sits level and covers your forehead adequately.
- Adjust the head fit knob (Section 4.3) for a snug, comfortable fit that does not cause pressure points.
- Fasten the dual D-ring chin strap securely under your chin. Ensure it is tight enough so the helmet cannot be easily rolled off your head.
5.2. Using the Smoke Visor
The integrated smoke visor can be adjusted for varying light conditions:
- Flip Up: To raise the visor, gently push it upwards until it locks into its raised position.
- Flip Down: To lower the visor, pull it downwards until it covers your eyes. This provides UV protection and reduces glare.
The half-face design of this helmet allows for easier checking of blind spots, enhancing situational awareness on scooters, small motorcycles, or ATVs.
6. Maintenance
6.1. Cleaning the Helmet Exterior
Clean the ABS shell with a soft cloth and mild soap and water. Avoid harsh chemicals, solvents, or abrasive cleaners, as these can damage the helmet's finish and material integrity.
6.2. Cleaning the Inner Liner
The inner liner is removable and washable:
- Carefully remove the inner liner components from the helmet.
- Hand wash the liner with mild soap and cool water.
- Rinse thoroughly and allow to air dry completely before reinstalling. Do not machine wash or tumble dry.
6.3. Visor Care
Clean the smoke visor with a soft, damp cloth and mild soap. Do not use abrasive materials or harsh chemicals, which can scratch or damage the visor's surface and coatings.
7. Troubleshooting
- Helmet feels too loose or too tight: Use the head size adjustment knob at the rear of the helmet to fine-tune the fit. Refer to Section 4.3.
- Visor not moving smoothly: Ensure no debris is obstructing the visor mechanism. Clean the visor and its pivot points gently.
- General concerns: For any other issues or questions not covered in this manual, please contact Soman Customer Service.
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | H3 |
| Brand | Soman |
| Certificate Type | DOT FMVSS.218 Approved |
| Shell Material | Acrylonitrile Butadiene Styrene (ABS) |
| Closure Type | Double Ring |
| Item Weight | 3.1 pounds (approx. 750+ grams) |
| Special Features | Lightweight, Ventilation, Integrated Smoke Visor, Adjustable Head Fit |
| Recommended Vehicle Service Type | ATV, Cruiser, Scooter |
| Color (as per current product) | Matte Black |
9. Warranty and Support
Soman is committed to product quality and customer satisfaction. If you encounter any problems with your Soman H3 Half Helmet, please contact the Soman Customer Service Team. They aim to reply within 24 hours to assist you with any inquiries or issues.
For further assistance, you may visit the official Soman Store on Amazon.

