Explained

Ski Helmets, Explained

After reading, you'll understand how certifications, rotational systems, construction and fit decide whether a ski helmet protects you.

Updated September 25, 2026 · Companion to our Ski & Snowboard review

OutdoorMaster KELVIN 2 MIPS Ski Helmet - our top pick
In this guide

Ski helmets look alike, but the safety details are in the small print. Certifications, rotational-impact systems and construction differ, and fit matters as much as any feature. Here is how to read the listing.

The 30-second version

  • Check the certification first, with ASTM F2040 for the US and EN 1077 for Europe.
  • MIPS and WaveCel address rotation, which standard tests do not measure.
  • In-mold helmets are lighter, while hard shells are tougher.
  • Fit is safety, so measure your head and use the chart.
  • Replace after a big impact, even if it looks fine.

The products this guide is about

Our verdict on each, with the full reasoning on the companion review.

What actually matters

  • Certification - ASTM F2040, EN 1077 or both. It shows the helmet passed impact testing.
  • Rotational protection - MIPS, WaveCel or similar. It helps in angled falls.
  • Construction - in-mold or hard shell. It affects weight and durability.
  • Fit system - dials, BOA or pads. A snug fit keeps protection in place.
  • Vents - fixed or adjustable. They control heat and goggle fog.
  • Goggle compatibility - clips and fit with your goggles. Gaps cause cold foreheads.
  • Returns - fit is personal. A return window helps.

The specs, in plain English

ASTM F2040The US standard for recreational snow sports helmets, covering impact protection and retention.
EN 1077The European standard for ski and snowboard helmets, in Class A (more coverage) and Class B.
MIPSMulti-directional Impact Protection System, a low-friction layer designed to reduce rotational forces.
WaveCelA collapsible cellular material designed to flex, crumple and glide in an impact.
In-moldA thin polycarbonate shell fused to the foam liner during molding. It is light and low profile.
Hard shell (ABS)A thicker plastic shell attached to the foam. It resists knocks but adds weight.
EPSExpanded polystyrene foam, the impact-absorbing layer in most helmets.
BOA fitA dial-and-lace system that tightens the helmet evenly around the head.

Green flags vs red flags

Green flags

  • ASTM F2040 and EN 1077 listed.
  • A rotational-impact system.
  • A published weight.
  • Clear sizing by head circumference.
  • A return window.

Red flags

  • No certification listed.
  • Only EN 1077 on a helmet sold in the US.
  • Final sale on a fit-sensitive item.
  • No sizing guidance.
  • Vague safety claims with no standard named.

Who's who: the brands

  • OutdoorMaster - A budget ski helmet and goggle brand with MIPS models.
  • Anon - Burton's helmet and goggle brand, known for WaveCel and BOA-fit helmets.
  • Wildhorn - A value snow gear brand with MIPS helmets and audio-compatible designs.
  • Retrospec - A budget brand for bikes, helmets, skates and snow gear.

How to read a listing without getting fooled

Start with the certifications and look for ASTM F2040 and EN 1077. Then check for a rotational-impact system, the construction type and the weight. Read the size chart and the brand's fit notes, then the venting and goggle details. Finally, check the returns policy before you buy.

How much should you spend?

Budget helmets can be well certified and even include MIPS, so price alone is not a safety guide. Mid-range helmets add better fit systems, venting and audio. Premium helmets add advanced impact systems, BOA fit, lower weight and lower profiles.

Questions, answered

Can I use a bike helmet for skiing?

No. Bike and ski helmets are tested to different standards, and ski helmets add cold-weather coverage and goggle fit. Use a helmet certified for snow sports.

Do ski helmets keep you warm?

Yes, most have liners and ear pads. Adjustable vents let you control warmth. A thin beanie under the helmet can change the fit, so check first.

Should kids wear MIPS helmets?

Many kids' helmets include MIPS, and it is a sensible feature. Fit matters most for kids, so measure often. Replace helmets as children grow.

Can I put stickers on my helmet?

Many makers advise against adhesives or paint, which can affect some shells. Check the manual. When in doubt, skip them.

Ready to choose? See our top pick, the alternatives, and the one we'd skip See the Ski Helmets verdicts

Or jump to the head-to-head: OutdoorMaster KELVIN 2 MIPS Ski Helmet vs Anon Logan WaveCel Ski & Snowboard Helmet.