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

The Highway 21 .357 is a DOT-approved half helmet built around a lightweight ABS shell and EPS foam liner, designed for classic half-helmet simplicity without fussy features. Diamond-stitched Coolmax® liner and washable interior keep you comfortable on long rides.

Features

• DOT-approved safety rating
• Durable lightweight ABS shell
• EPS foam interior for impact absorption
• Diamond-stitched Coolmax® liner
• Washable and replaceable interior pad
• Dual D-ring chinstrap
• Includes protective helmet bag

Specifications

• Brand: Highway 21
• Manufacturer Part #: H77-1101M
• UPC: 191361252594
• Shell Material: ABS plastic
• Liner Material: EPS foam with Coolmax® fabric
• Dimensions: 11.8 in L × 10.2 in W × 10.1 in H
• Weight: 3.17 lbs
• Country of Origin: China (Taiwan)

Frequently Asked Questions

Is this helmet DOT-approved?

Yes — the .357 meets DOT safety standards for street riding.

Can I wash the interior liner?

Yes. The diamond-stitched Coolmax® liner is fully washable and removable for cleaning.

What size helmet is this?

This is a medium (MD). Check the sizing chart to ensure proper fit before ordering.

What's included in the box?

The helmet, removable interior liner, dual D-ring chinstrap, and a protective helmet bag.

Is the interior replaceable if it wears out?

Yes — the liner is designed to be replaced if needed to refresh comfort and hygiene.