Highway 21 .357 Half Helmet - Solid Half Helmet Matte Black SM

The Highway 21 .357 is a D.O.T.-approved half helmet built on a lightweight ABS shell with EPS foam and a diamond-stitched Coolmax® liner. Classic half-helmet design that prioritizes durability and function for all-day riding without unnecessary frills.

Features

• D.O.T. approved
• Durable lightweight ABS shell
• EPS foam interior for impact protection
• Diamond-stitched Coolmax® liner
• Washable and replaceable interior padding
• Dual D-ring chinstrap
• Protective helmet bag included

Specifications

• Brand: Highway 21
• Manufacturer Part #: H77-1101S
• UPC: 191361252587
• Shell Material: ABS plastic
• Interior Material: EPS foam
• Liner: Diamond-stitched Coolmax®
• Chinstrap: Dual D-ring
• Dimensions (L×W×H): 11.8 × 10.2 × 10.1 in
• Weight: 3.17 lbs
• Country of Origin: China (Taiwan)

Frequently Asked Questions

Is this helmet D.O.T. approved?

Yes — the .357 meets D.O.T. safety standards for street riding.

Can I wash the liner?

Yes. The interior padding is removable and washable. You can also purchase a replacement liner if needed.

What size is the SM?

Small/Medium — dimensions are 11.8 in length, 10.2 in width, and 10.1 in height. Check with the manufacturer for specific fit guidance if between sizes.

What's in the box?

The helmet, a protective helmet bag, and dual D-ring chinstrap already installed.

How much does it weigh?

3.17 lbs — lightweight ABS shell keeps overall weight down for comfortable all-day wear.