Giro Aries Spherical MIPS Helmet (White) (S)

Giro Aries Spherical MIPS Helmet (White) (S)
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Price: $299.95

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Giro Aries Spherical Helmet Description:

How do you make the best better? Giro engineers were tasked with improving their premium Aether helmet, so they went to work. Behold the Aries Spherical. This helmet offers the highest level of protection using Spherical Technology, which is a unique ball-and-socket design that redirects impact forces away from the head. Reducing weight and increasing ventilation while maintaining a sleek and compact look with the classic Giro style. From a Pro Tour rider to a gravel adventure enthusiast, everyone will want this helmet.


  • Spherical Technology absorbs and redirects energy from rotation impacts
  • Roc Loc 5+ Air is Giro's lightest fit system and is highly adjustable for a precise fit
  • Multi-density EPS foam to save weight and manage a wide range of impact forces
  • Wind Tunnel ventilation offers advanced aerodynamics and excellent ventilation
  • MIPS offers next level protection from multi-direction impacts
  • Antimicrobial padding called Ionic+ designed to reduce bacteria build up


  • Fit System: Roc Loc 5+ Air
  • Ventilation: 24 Vents and Deep Internal Channeling
  • Safety Features: Spherical MIPS
  • Color: White
  • Weight: 275g (M)

This product was added to our catalog on January 19, 2023

Helmet Measurements:

  • Wrap a measuring tape around your head
  • Make sure that tape is level from front to back
  • Note measurement and reference Size Chart
Circumference (cm)
XS47 - 51cm
S51 - 55cm
M55 - 59cm
L59 - 63cm
XL61 - 65cm

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 Fit:

  1. Adjust the fit system at the rear of the helmet for a snug, secure fit. Some helmets 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.

Note: All measurements are provided by the manufacturer and may vary depending on how measurements are acquired.