What Makes Our Helmets Safe

Most helmets rely on foam that compresses the same way everywhere.

The Rhoan uses a fully 3D-printed internal structure designed to respond differently depending on how and where impact occurs—because real crashes are rarely straight-on.

At the core is our Hex Honeycomb Structure 2™, which manages both direct (linear) and angled (rotational) impacts as part of the structure itself.

Structural Energy Management

The Hex Honeycomb Structure 2™ is a dual-density, anisotropic lattice. Each hexagonal cell deforms independently, allowing the structure to compress, shear, or resist movement depending on impact direction and magnitude.

Unlike traditional EPS foam, which compresses uniformly, this architecture enables more controlled energy dissipation across a broader range of real-world impact scenarios.

What About Rotational Impacts (and MIPS)?

Rotational forces matter in real crashes. The Rhoan manages them within the helmet’s structure—without adding extra layers.

Rather than adding a separate slip-plane layer, the Rhoan manages rotational energy within the helmet’s structure itself. The mid-line and directional behavior of the Hex Honeycomb Structure allow the helmet to shear when needed and compress when needed, depending on impact angle.

This integrated approach addresses rotational dynamics without additional layers or bulk.

Materials That Do More Than Absorb Impact

The Rhoan is built from KAV PolyCarbon Composite™, a proprietary polycarbonate-based material developed specifically for impact management and durability.Compared to traditional EPS foam, this material:

  • Maintains structural integrity over time
  • Resists UV exposure and chemicals
  • Supports greater airflow through the helmet

Internal testing showsit wicks heat up to 8× more effectively and cools up to 2× faster than standard EPS, helping reduce heat buildup during hard efforts.

The open-cell geometry of the Hex Honeycomb Structure 2™ functions as a thermal scaffold, channeling air through the helmet while preserving energy-absorbing volume. This allows improvements in both cooling and impact performance without increasing weight or material thickness.

Tested Before It’s Certified

Before any helmet is sent for third-party certification, it undergoes thousands of impacts during in-house development testing.This process allows us to refine structure, density, and geometry long before independent validation—so certification results reflect deliberate engineering, not chance.Independent testing includes:

  • CPSC compliance testing
  • Intertek laboratory impact testing
  • Virginia Tech STAR evaluation

In-house testing is used for iterative design and refinement. Third-party certification and Virginia Tech testing provide independent validation of the final production helmet.

Crash Replacement, Covered

Helmets are designed to absorb energy by deforming—and should always be replaced after a crash.Every Rhoan helmet includes 100% crash replacement during its 5-year warranty period. If you’re involved in a crash, we’ll replace your helmet with the same model so you can get back on the road with confidence.

Safety at a Glance

  • 5-Star Virginia Tech Safety Rating
  • ≥50% greater impact resistance than CPSC requirements (Intertek)
  • Fully 3D-printed impact structure
  • Integrated rotational energy management
  • 100% crash replacement within 5-year warranty

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