Skip to main content

Giro Cielo MIPS Bike Helmet

Giro Cielo MIPS Bike Helmet
  • Color: Matte Black / Charcoal
  • Color: Matte Black / Charcoal
  • Color: Matte Black / Charcoal
  • Color: Matte Black / Charcoal
  • Color: Matte White / Silver Fade
  • Color: Matte White / Silver Fade
  • Color: Matte White / Silver Fade
  • Color: Matte White / Silver Fade
Color: Matte Black / Charcoal
Size: Select size
Please select options Unavailable


With a compact shape, Mips® Evolve Core rotational energy management, and 22 Wind Tunnel vents, the Cielo Mips® delivers style, protection, and comfort for road and gravel riders.

Enthusiast road and gravel riders deserve pro-level performance and Cielo delivers the style, features, and comfort that set Giro ahead of the bunch.

Inspired by Aries, with nods to iconic models like Aeon, Cielo's compact design houses maximizes cooling performance with 22 vents tied to deep internal channeling, while integrated protection from Mips® Evolve Core combines with our top-tier Roc Loc 5 Air fit system.

For performance, protection and style that stands out from the pack, step up to Cielo.

Roc Loc 5 Air Mips Fit System

This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc 5 Air Mips allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channeling that exhaust heat out of the helmet. Fit and feel adjustments mimic the Roc Loc 5 Mips, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.

Integrated MIPS® Brain Protection System

The goal of Giro's Integrated Mips®-equipped helmets is to reduce rotational forces while enhancing fit and comfort by combining the Mips slip plane with the helmet's adjustable fit system.


Roll Cage Reinforcement

Roll Cage is a light-yet-tough web of reinforcement invisibly molded inside a helmet's EPS foam liner. It helps the helmet to hold together under impact, and provides an extra measure of strength and integrity that you'll never notice...unless you need it.

Wind Tunnel Ventilation

Giro helmets are developed utilizing their proprietary Wind Tunnel ventilation system. This elaborate design combines active vents in the helmet's shell with exhaust channels inside the helmet that thrust fresh, cool air over and around the rider's head while forcing heat and stale air out. It's the most effective cooling system available, and a difference you can feel every time you ride.

Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement.

Adult Super Fit SizeCircumference
Small 51 - 55 cm
Medium 55 - 59 cm
Large 59 - 63 cm

Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

How To Adjust The Fit

  1. If the helmet has one, adjust the fit system at the rear of the helmet for a snug, secure fit. Some fit systems also include a vertical tuning feature that allows you to adjust the fore/aft tilt, for optimal positioning on your head.
  2. Adjust the straps so that they sit just below the earlobes.
  3. Adjust the buckle so that it rests against the back of the jaw/throat.
  4. Adjust the interior pads if needed.
  5. Check the fit to make sure helmet is comfortable and secure. It should not roll forward or back, or be able to slide off.


Weight (g) 300g (size Medium CPSC)|290g (size Medium CE)
Retention System Roc Loc® 5 Air
Protection MIPS (Multi-Directional Impact Protection System)
Certification Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older | E.U.: CE EN1078
Type Road

* Subject to change without notice.

Part Numbers

Option UPC Store SKU
Matte Black / Charcoal / Medium 196178176033 HEL542940644
Matte Black / Charcoal / Large 196178176040 HEL546327144
Matte White / Silver Fade / Large 196178176101 HEL54995734