Get ready to ride with a helmet that embodies lightness, speed and perfect ventilation. The GIRO Aries Spherical is the result of an uncompromising innovation that has shrunk the profile to an absolute minimum so that the helmet follows the shape of your head perfectly.
With an incredibly efficient ventilation system that includes 24 Wind Tunnel™ vents, you'll enjoy every ride in maximum comfort and with a sense of security.
And safety is at the heart of this helmet - thanks to the breakthrough Spherical Powered by MIPS technology, this is the best protection the GIRO brand has ever offered.
- Advanced protection and shock absorption
Spherical Technology Powered by MIPS provides dual-layer protection with moving hemispheres and elastomers that effectively absorb impact forces. Combined with Progressive Layering Technology, it protects your head when impacted from different angles. - Maximum ventilation and comfort
With 24 Wind Tunnel™ vents, your head stays fresh even during the most intense performance. The Roc Loc® 5+ Air clamping system and Ionic+ antimicrobial linings ensure perfect fit and hygiene.
- Spherical Powered by MIPS technology
- 24 Wind Tunnel™ vents
- Slimline ultra-lightweight straps
- Ionic+ Antibacterial Lining
- Aura Reinforcement Arch for strength
Specifications:
Tensioning System: Roc Loc® 5+ Air
Construction: In-mold, Progressive Layering, Spherical, Aura Reinforcement, Nanobead EPS
Ventilation: 24 Wind Tunnel™ vents
Features: Ionic+ antibacterial lining, Slimline ultralight taping
Sizes: Super Fit™ S (51-55 cm), M (55-59 cm), L (59-63 cm)
Science and soul. They might seem like two disparate entities - but through the 30-year history of the Giro brand, they have been brought together in equal measure. Giro benefits from world-class resources. Based in Santa Cruz, California, it's an action sports paradise - incredible waves for surfers, endless singles for bikers and coastline-lined roads for roadies.
At Giro's headquarters, you'll find over 50 different helmet testers, several 3D printers, a custom wind tunnel, and even a Therminator test head equipped with thermal sensors to test helmet venting and hole placement. Giro has a lot of products in many categories, from helmets to gloves to trunks. But each one was born out of a desire to enhance your riding experience.
Gloves
| Group | Size | Hand circumference (cm) | Palm length (cm) |
| Men's | extra small (6) | 16–17,8 | 15–16,4 |
| S (7) | 17,9–20 | 16,5–17,9 | |
| M (8) | 20,1–21,9 | 18–19,4 | |
| L (9) | 22–23,4 | 19,5–20,4 | |
| Extra Large (10) | 23,5–24,9 | 20,5–21,9 | |
| Extra-extra-large (11) | 25–26,5 | 22–23,5 | |
| Extra-Extra-Large (12) | 26,5–27 | 23,5–24,5 | |
| Women's | S (6) | 15,5–16,9 | 16–16,9 |
| M (7) | 17–18,9 | 17–18,3 | |
| L (8) | 19–20,4 | 18,5–19,5 | |
| Extra Large (9) | 20,5–21 | 19,6–20,5 | |
| Children's | extra small (3) | 13,3–14,2 | 15–15,4 |
| S (4) | 14,3–15,2 | 15,5–15,9 | |
| M (5) | 15,3–16,2 | 16–16,5 | |
| L (6) | 16,3–17,2 | 16,5–16,9 |
Running Shoes – EU / US / UK / Foot Length (cm)
| Group | EU | 36 | 36,5 | 37 | 37,5 | 38 | 38,5 | 39 | 39,5 | 40 | 40,5 | 41 | 41,5 | 42 | 42,5 | 43 | 43,5 | 44 | 44,5 | 45 | 45,5 | 46 | 46,5 | 47 | 47,5 | 48 | 49 | 50 |
| Women's | US | 5 | 5,5 | 6 | 6,5 | 6,5 | 7 | 7,5 | 8 | 8,5 | 8,5 | 9 | 9,5 | 10 | 10,5 | 10,5 | – | – | – | – | – | – | – | – | – | – | – | – |
| UK | 3 | 3½ | 4 | 4½ | 4¾ | 5 | 5½ | 6 | 6½ | 6¾ | 7 | 7½ | 8 | 8½ | 8¾ | – | – | – | – | – | – | – | – | – | – | – | – | |
| Length (cm) | 23 | 23,2 | 23,5 | 24 | 24,2 | 24,5 | 25 | 25,2 | 25,5 | 26 | 26,2 | 26,5 | 27 | 27,2 | 27,5 | – | – | – | – | – | – | – | – | – | – | – | – | |
| Men's | US | – | – | – | – | – | – | – | – | 7,5 | 7,5 | 8 | 8,5 | 9 | 9,5 | 9,5 | 10 | 10,5 | 11 | 11,5 | 11,5 | 12 | 12,5 | 13 | 13,5 | 13,5 | 14,5 | 15 |
| UK | – | – | – | – | – | – | – | – | 6½ | 6¾ | 7 | 7½ | 8 | 8½ | 8¾ | 9 | 9½ | 10 | 10¼ | 10½ | 11 | 11½ | 12 | 12¼ | 12½ | 13½ | 14 | |
| Length (cm) | – | – | – | – | – | – | – | – | 25,5 | 26 | 26,2 | 26,5 | 27 | 27,2 | 27,5 | 28 | 28,2 | 28,5 | 29 | 29,2 | 29,5 | 30 | 30,2 | 30,5 | 31 | 31,5 | 32 |
Socks
| Size | S | M | L | XL |
| EU | 36–39 | 40–42 | 43–45 | 46–48 |
Men's T-shirts / jerseys / jackets / shorts / pants
* Waist size (T-shirts) – T-shirts, jerseys, jackets. Waist size (pants) and hip size – shorts and pants. The numerical size in parentheses corresponds to the waist size in inches.
| Size | Extra Small (28) | S (30) | I am 32 years old. | L (34) | Extra Large (36) | Extra-extra-large (38) | Extra Extra Large (40) |
| Chest (cm) | 83,8–88,9 | 88,9–94 | 96,5–101,6 | 104,1–109,2 | 111,8–116,8 | 119,4–124,5 | 127–132,1 |
| Waist – T-shirts (cm) * | 68,6–73,7 | 73,7–78,7 | 78,7–83,8 | 83,8–88,9 | 88,9–94 | 94–99,1 | 99,1–104,1 |
| Waist – pants (cm) * | 83,8–88,9 | 88,9–94 | 96,5–101,6 | 101,6–106,7 | 106,7–111,8 | 111,8–116,8 | 116,8–121,9 |
| Hips – pants (cm) * | 68,6–73,7 | 73,7–78,7 | 78,7–83,8 | 83,8–88,9 | 88,9–94 | 94–99,1 | 99,1–104,1 |
Women's T-shirts / jerseys / jackets / shorts / pants
* Chest, waist (T-shirts) – T-shirts, jerseys, jackets. Waist (pants) and hips – shorts and pants.
| Size | XXS | XS | S | M | L | XL | XXL | XXXL |
| Chest (cm) | 76,2–78,7 | 81,3–83 | 86,4–88,9 | 91,4–94 | 96,5–99,1 | 99,1–104,1 | 104,1–109,2 | – |
| Waist – T-shirts (cm) * | 55,9–61 | 61–66 | 66–71,1 | 71,1–76,2 | 76,2–81,3 | 81,3–86,4 | 86,4–91,4 | – |
| Waist – pants (cm) * | – | 81,3–86,4 | 86,4–91,4 | 91,4–96,5 | 96,5–101,6 | 101,6–106,7 | 106,7–111,8 | 111,8–116,8 |
| Hips – pants (cm) * | – | 55,9–61 | 61–66 | 66–71,1 | 71,1–76,2 | 76,2–81,3 | 81,3–86,4 | 86,4–91,4 |
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