Sign Up
Matte Black
Click Here for Larger Image
Matte Black
Giro Quarter MIPS MTB Helmet
Giro Quarter MIPS MTB Helmet
Giro Quarter MIPS MTB Helmet
Matte Frost

Giro Quarter MIPS Helmet

Out of Stock
Ships Free!
Earn $5.99 in VIP credit. Click to Learn More.
This color/size is not eligible for VIP points
Please Confirm Color/Size

The Giro Quarter MIPS Helmet is an everyday helmet that provides advanced protection and urban styling in one budget-friendly package. Marking one of the lowest-profile helmets Giro has ever made, the Quarter also is one of the lightest that is made with an ABS shell. Giro took the standard bucket-style helmet, and tweaked it for superior protection and comfort. Adding in the Multidirectional Impact Protection System (MIPS), the Quarter provides added protection by redirecting energy in certain kinds of impacts. Additionally, a polyurethane coating helps protect the EPS liner from daily wear and tear, increasing the lifespan and durability of the helmet.


  • MIPS-equipped low profile helmet with an ultra-lightweight ABS shell.
  • External polyurethane coating protects the EPS liner from daily wear and tear.
  • 8 vents allow for maximum breathability.
  • Available in 3 sizes: Small (51 - 55cm), Medium (55 - 59cm), Large (59 - 61.5cm).
Head Circumference20"-21¾"21¾"-23¼"23¼"-24¾"   
Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Reviewed 1/4/2019
by robk
Daily Commuter
Value Rating
Overall Rating
Yup, it's a helmet

I got this helmet for my son who rides his bike all around his college campus, and to all his off-campus excursions. I bought it for 2 reasons 1) MIPS. We all hope we never actually need to use the helmet for what it's designed for. But if you crash, you want the best. 2) Not too many air vents, cuz it's cold in Chicago!

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 6/18/2018
by MoserM82
Cycling Enthusiast
Mechanicsburg, PA
Value Rating
Overall Rating
Certainly more helmet than a road bike one, feels safer.

Well, I purchased it for something different than what it was designed for I think bicycle touring. I just wanted a different look and the high visibility of the orange is amazing. The helmet is heavier than you might expect when you read the description lightweight, but then it isn't a road helmet. I'm not sure what the helmet will be like if it gets humid, but I think mid warm temps it might work well.

Was this review useful to you? Yes/No
Thank you for your feedback.
Reviewed 7/19/2018
by Ccbeads213
Boxford, ma
Overall Rating
Tiny head

I really loved the helmet. The color was really nice but I was so disappointed that I had to send it back due to the fact that I have a really small head. I have a hard time finding hats and helmets to fit. If I had a big head I definitely would have kept it.

Was this review useful to you? Yes/No
Thank you for your feedback.

Articles will open in new tab.

A guide to selecting the proper bike helmet.

We are committed to delivering outstanding value and service to our customers, every day.
Try us today to see why so many of our customers come back again and again.

*Orders received before 3:00PM Pacific time are shipped the same day (Mon-Sat). Orders over $50 are shipped free (USA only, excluding AK and HI). Some exceptions apply. See Shipping for details.