Free Shipping on Orders over $50 | We Price Match, Just Ask Us!

Giro Aether Spherical Road Cycling Helmet, Matte Portaro Grey/White/Red, Small

-15%Ā  $254.92

List Prices:Ā  $299.95

one minor scuff on top. Missing: part of the original packaging.

We Price Match!


From the elegant silhouette of its industrial design, to how this helmet manages impact forces, the Aether spherical is a testament to performance innovation. Inside the Aether Spherical, a dual-density EPS foam liner helps manage a wide range of impact energies, while also boasting deep internal channeling to provide cooling airflow. Giro's proprietary Spherical Technology is integrated between the layers of EPS foam, instead of against the rider's head, giving riders the benefits of MipsĀ® without obstruction to comfort or cooling power. The stunning silhouette is formed by a sleek six-piece shell that surrounds a series of massive vents, with added structural reinforcement via a shatter-resistant AURA reinforcing arch. The final touch is Giro's Roc Loc 5+ Air fit system, featuring 3-way fit tuning, that allows for easy adjustment in seconds.

Features

  • Spherical Technology, Powered By MIPSĀ®
  • Independent, in-mold liners with spherical ball-and-socket design
  • Six-Piece Polycarbonate Hardbody Lower Shell
  • Complies With The US CPSC Safety Standard For Bicycle Helmet For Persons Age 5 And Older

Specifications

# of Vents
11
Best Use
Cycling, Road Cycling, Fitness
Featured Technologies
Wind Tunnel Ventilation, Roc Loc Air Fit, MIPS
MPN
7129104
Material
ABS
UPC
0000757350605552
Weight
263 Grams

More Like This

Ā -25%Ā 
Abus
Abus Bordo Granit X Plus 6500 Lock

List Price:Ā  $209.99

$157.49
Ā -15%Ā 
Ā -15%Ā 
Kali Protectives
Kali Protectives Cruz Cycling Helmet

List Price:Ā  $59.99

$50.99
Ā up toĀ -15%Ā 
Giro
Giro Chronicle MIPS Helmet - Unisex

List Price:Ā  $109.95

$93.42Ā -Ā $98.91
Ā up toĀ -20%Ā 
Abus
Abus Urban-I 3.0 Urban Cycling Helmets, Titan, Small

List Price:Ā  $79.95

$63.96Ā -Ā $67.96
Ā up toĀ -30%Ā 
Giro
Giro Montaro MIPS Mountain Bike Helmet, Matte Black/Gloss Black, Small

List Price:Ā  $149.95

$104.93Ā -Ā $134.91
Ā up toĀ -15%Ā 
Bell
Bell Local BMX Helmet

List Price:Ā  $54.95

$46.71Ā -Ā $49.46
Ā up toĀ -15%Ā 
Bell
Bell Hub Urban Bike Helmet

List Price:Ā  $85.00

$63.71Ā -Ā $76.50
Ā -10%Ā 
Kask
Kask Protone Cycling Helmet

List Price:Ā  $299.95

$269.96
Ā -15%Ā 
Bell
Bell Avenue MIPS Road Bike Helmet

List Price:Ā  $79.95

$67.96
Ā -10%Ā 
Ā up toĀ -25%Ā 
Suomy
Excellent Suomy Timeless Unisex Bike Helmet, Matte White/Silver, LG/XL

List Price:Ā  $94.99

$71.24Ā -Ā $80.74
Ā -10%Ā 
Fizik
Fizik Tempo Argo R3 Road Cycling Saddle

List Price:Ā  $149.99

$134.99
Ā -15%Ā 
Giro
Excellent Giro Chronicle MIPS Mountain Bike Helmet

List Price:Ā  $109.95

$93.42
Ā -15%Ā 
Kali Protectives
Kali Protectives Uno Cycling Helmet

List Price:Ā  $109.99

$93.49
Ā -15%Ā 
Giro
Excellent Giro Isode MIPS Road Helmet

List Price:Ā  $54.95

$46.67
Ā -10%Ā 
Bell
Bell Sidetrack II Youth Bike Helmet

List Price:Ā  $59.95

$53.96
Ā up toĀ -25%Ā 
Giro
Very Good Giro Hale MIPS Kids Mountain Bike Helmet

List Price:Ā  $69.95

$44.93Ā -Ā $62.91
Ā up toĀ -20%Ā 
Abus
Abus Aventor Cycling Helmets, Velvet Black, Medium

List Price:Ā  $189.99

$151.99Ā -Ā $152.99
Ā up toĀ -15%Ā 
Bell
Bell Super Air Spherical Mountain Bike Helmet

List Price:Ā  $234.95

$191.21Ā -Ā $211.46
Ā -15%Ā 
Ā up toĀ -15%Ā 
Giro
Giro Fixture MIPS XL Mountain Bike Helmet

List Price:Ā  $75.00

$63.71Ā -Ā $74.95
Ā up toĀ -20%Ā 
Giro
Very Good Giro Synthe MIPS Road Helmet

List Price:Ā  $239.95

$191.92Ā -Ā $203.92

Connect With Us

Ā© 2025 Great Lakes Outpost