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GIRO Insurgent Spherical Mat Black

38937-255

Cycling helmet

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324,16 € 381,37 €
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Insurgent Spherical Mat Black

Insurgent Spherical Mat Black

324,16 € 381,37 €
Detailed description
Specifications
Brand
Size chart

Introducing the revolutionary Insurgent Spherical full-face helmet from Giro. This model delivers uncompromising protection and the high quality standard expected by riders on the Enduro World Series (EWS) and at Red Bull Rampage.

Designed with protection and exceptional ventilation in mind, this helmet offers 50% better ventilation than its predecessor, the Disciple Mips. With easily adjustable cheek pads and a snap-in system for safe, easy removal, the helmet weighs just 1040 grams in size M/L—200 grams less than the previous model.

The key feature is the innovative Spherical Technology Powered by Mips. Developed in collaboration with Mips, this unique technology works like a ball-and-socket joint, allowing the helmet’s outer layer to rotate around the inner layer on impact, reducing direct forces on the brain.

Other notable features include the Flex Gasket system, which reduces impact force to the collarbone, and a three-bolt adjustable visor for easy, tool-free position changes. And for action camera fans, the visor provides a stable mounting point for easy attachment of your device.

  1. Improved ventilation and comfort:
    Thanks to a new design, the Insurgent Spherical offers 50% better ventilation than its predecessor, increasing rider comfort. With easily adjustable cheek pads and a snap-in system, removing the helmet is simple and safe.
  2. Lightweight and durable:
    At just 1040 grams for size M/L, this helmet is 200 grams lighter than the previous model, without any compromise in durability and safety.
  3. Innovative protection technology:
    Spherical Technology Powered by Mips, developed in collaboration with Mips, allows the helmet’s outer layer to rotate around the inner layer on impact, reducing direct forces on the brain.
  4. Flexible and safe features:
    The Flex Gasket system reduces impact force to the collarbone, and the three-bolt adjustable visor allows easy, tool-free position changes. In addition, for action camera fans, the visor provides a stable mounting point for easy attachment of your device.
  • adjustable visor
  • option to install an action camera on the underside of the visor
  • Ionic+ antimicrobial padding
  • 25 mm wide straps with a threaded “D-Ring” buckle

Specifications:

Construction: In-mould, Progressive Layering, chin bar with EPP layer, pre-preg fibreglass outer shell
Protection system: Spherical Technology Powered by Mips – increased protection against rotational forces
Fit system: Roc Loc Air DH
Ventilation: 20 vents with air channels, Wind Tunnel system, Stack Ventilation goggle ventilation support
Weight: approx. 1040 grams (size M/L)
Certification: CE EN 1078, CPSC, ASTM-1952-DH, ASTM-2032-BMX, AS/NZS

Sizes:

M/L (55–59 cm)
XL/XXL (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.

colour: Black
Season: 2026 jaro
Code:38937-255
Brand: GIRO

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 4 5 6 7 8
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 7 8 9 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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