Treadley Explorer Helmet Hat


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Treadley Explorer Helmet Hat is a Bike helmet cover.

Enjoy sun protection and improved rider comfort with our feature-packed Explorer.

One Size: Extra Large to fit ALL helmets

  • UPF50+ base fabric – the highest protection
  • The widest peak of all styles for increased sun protection
  • High vis binding on peak and back flap for improved rider visibility
  • Strap catches to help keep back flap in place
  • Large mesh vent panels for cooler rider comfort
  • Solid UPF50+ fabric through the crown
  • Meets Cancer Council guidelines
  • Looped elastic and toggle for easy fit and adjustment
  • Protects the face, eyes, ears, and back of the neck from sun exposure
  • 12-month warranty
  • Protects helmet from sun damage

Fitting and Size Guide

Finding the Treadley Helmet Hat style to fit your helmet is quick and easy.

The new Hat size XL will fit most helmets.

  1. Check the SHAPE and SIZE of your HELMET.  Helmet size is found on the inside of the helmet, e.g. Medium (54-56cm)
  2. Use the guide below to MATCH the HELMET SHAPE and SIZE with a Treadley Helmet Hat STYLE
  3. Select the Treadley style, colour and size that’s right for you.


How to install




Grey and Blue, Grey and Coral, Grey and Grey, Grey and Mint, Grey and Navy, Grey and Teal, High Viz Yellow



Customer Reviews

Based on 33 reviews
C. (Diamond Creek, AU)
Great Product and Service

We have purchased several of the Helmet Hats and find that they are a great product. PLUS, they stand by their product even several years after the purchase date.

Pamela Chapman (Adelaide, AU)
Treadley Explorer Hat does the job

Delighted with our SunBrim Treadley Explorer hats. They fit perfectly over our bike helmets meaning we can protect ourselves from the sun while out and about on our bikes.

Ann Bird (Perth, AU)


Ronald Maynard (Brisbane, AU)
Just what I was looking for.

Nicely made product, exactly as described and does exactly what it is supposed to do.

Doug McLean (Hobart, AU)
One size doesn’t fit all

Too small for my helmet.

Barry Brooks (Melbourne, AU)
Treadley Explorer Helmet Hat Review

It looks fine but it's far too small to fit on my helmet. One size does not fit all.

Lidya (Sydney, AU)
Protects from the sun

This hat is perfect for bike riding. Got the small one for my son when he was in preschool. Had to buy larger one as he has outgrown it. The hat really provides sun protection especially at the back of the neck.