Mavic Winter Underhelmet Cap review

Wearing a cap under your helmet is essential to keep your head and ears warm on cold winter rides.

Cycling Weekly Verdict

Comfortable, well-made and warm skull cap. The only downside is the limited sizes, as one size doesn't fit all.

Reasons to buy
  • +

    Fits perfectly under the helmet

  • +

    Attractive

Reasons to avoid
  • -

    Slightly on the small side

A cold head and ears can quickly ruin a winter ride, but fitting a warm hat under a helmet can be uncomfortable. This is where a skull cap such as this becomes useful. Just be aware, that if you choose to wear it without a helmet you will look like a cosmonaut.

 >>> For the best winter gloves, click here

Mavic claim that the cap features "wind protection and thermal protection with strategically placed windproof fabric and brushed inserts for moisture management and thermo regulation". We found that the holes near the ear aid hearing and offer a degree of ventilation.

MIP_046425

Venting on the ear, helps regulate temperature, but also makes hearing easier

Having worn this cap on many winter rides we can confirm it excellent at keeping you warm and is ideal for temperatures ranging from 0ºC to 12ºC. We like the Mavic Winter Underhelmet cap, it fitted under our helmets really well and considering a good thermal cap will last years, it isn't too expensive either.

 >>> For a buyers guide to winter tyres, click here.

Our only gripe was the one size fits all sizing. Our testers who normally wear size 'medium' helmets found it a little on the small side, with not all of their ears covered. If you have a smaller head than a male 'medium' this will probably be the ideal fit.

For more details visit the Mavic website (opens in new tab).

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Oliver Bridgewood - no, Doctor Oliver Bridgewood - is a PhD Chemist who discovered a love of cycling. He enjoys racing time trials, hill climbs, road races and criteriums. During his time at Cycling Weekly, he worked predominantly within the tech team, also utilising his science background to produce insightful fitness articles, before moving to an entirely video-focused role heading up the Cycling Weekly YouTube channel, where his feature-length documentary 'Project 49' was his crowning glory.