Giro Helios Spherical Matte Black Fade
Giro Helios Spherical Matte White/Silver Fade
Giro Helios Spherical Matte Black Fade/Highlight Yellow
Helios Spherical
Helios Spherical
$250.00 $250.00
Basementeers save 10%

Color: Matte Black Fade
Size: S Size Chart
Giro Size Charts

Bike Helments (unisex)

ADULT SUPER FIT SIZECIRCUMFERENCE (IN)CIRCUMFERENCE (CM)
S20" - 21.6"51 - 55
M21.6" - 23.2"55 - 59
L23.2" - 24.8"59 - 63
XL24" - 25.5"61 - 65

Universal Fit Women's Bike Helmets

UNIVERSAL FIT WOMENS SIZECIRCUMFERENCE (IN)CIRCUMFERENCE (CM)
UW19.6" - 22.4"50 - 57

Snow Helments (unisex)

ADULT SIZECIRCUMFERENCE (IN)CIRCUMFERENCE (CM)
S20.4" - 21.8"52 - 55.5
M21.8" - 23.2"55.5 - 59
L23.2" - 24.6"59 - 62.5
XL24.6" - 25.5"62.5 - 65

Men's Tops

SIZECHESTWAIST
XS33 - 35" / 83.8 - 88.9 cm27 - 29" / 68.6 - 73.7 cm
S35 - 37" / 88.9 - 94 cm29 - 31" / 73.7 - 78.7 cm
M38 - 40" / 96.5 - 101.6 cm31 - 33" / 78.7 - 83.8 cm
L41 - 43" / 104.1 - 109.2 cm33 - 35" / 83.8 - 88.9 cm
XL44 - 46" / 111.8 - 116.8 cm35 - 37" / 88.9 - 94 cm
XXL47 - 49" / 119.4 - 124.5 cm37 - 39" / 94 - 99.1 cm
XXXL50 - 52" / 127 - 132.1 cm39 - 41" / 99.1 - 104.1 cm

Men's Bottoms

SIZEHIPWAIST
28 (XS)33 - 35" / 83.8 - 88.9 cm27 - 29" / 68.6 - 73.7 cm
30 (S)35 - 37" / 88.9 - 94 cm29 - 31" / 73.7 - 78.7 cm
32 (M)38 - 40" / 96.5 - 101.6 cm31 - 33" / 78.7 - 83.8 cm
34 (L)40 - 42" / 101.6 - 106.7 cm33 - 35" / 83.8 - 88.9 cm
36 (XL)42 - 44" / 106.7 - 111.8 cm35 - 37" / 88.9 - 94 cm
38 (XXL)44 - 46" / 111.8 - 116.8 cm37 - 39" / 94 - 99.1 cm
40 (XXXL)46 - 48" / 116.8 - 121.9 cm39 - 41" / 99.1 - 104.1 cm

Men's Gloves

MEN'S SIZEHAND WIDTHHAND LENGTH
XS (6)6.3 - 7" / 160 - 178 mm5.9 - 6.5" / 150 - 164 mm
S (7)7" / 179 - 200 mm6.5 - 7" / 165 - 179 mm
M (8)8 - 8.6" / 201 - 219 mm7 - 7.6" / 180 - 194 mm
L (9)8.7 - 9" / 220 - 234 mm7.7 - 8" / 195 - 204 mm
XL (10)9.25 - 9.8" / 235 - 249 mm8 - 8.6" / 205 - 21 9mm
XXL (11)9.85 - 10" / 250 - 265 mm8.7 - 9.25" / 220 - 235 mm
XXXL (12)10.4 - 10.6" / 265 - 270 mm9.25 - 9.6" / 235 - 245 mm

Men's Socks

SOCK SIZEMEN'S US SHOEEU SHOE
S4 - 6.536 - 39
M7.5 - 940 - 42
L9.5 - 1143 - 45
XL12 - 13.546 - 48

Men's Shoes

EU SIZEUS MEN'S
36-
37-
37.5-
38-
38.5-
396.5
39.57
407.5
40.57.5
418
41.58.5
429.5
42.59.5
439.5
43.510
4410.5
44.511
4612
46.512.5
4713
4813.5
4914
5015

Women's Tops

SIZECHESTWAIST
XXS30 - 31" / 76.2 - 78.7 cm22 - 24" / 55.9 - 61 cm
XS32 - 33" / 81.3 - 83. cm24 - 26" / 61 - 66 cm
S34 - 35" / 86.4 - 88.9 cm26 - 28" / 66 - 71.1 cm
M36 - 37" / 91.4 - 94 cm28 - 30" / 71.1 - 76.2 cm
L38 - 39" / 96.5 - 99.1 cm30 - 32" / 76.2 - 81.3 cm
XL39 - 41" / 99.1 - 104.1 cm32 - 34" / 81.3 - 86.4 cm
XXL41 - 43" / 104.1 - 109.2 cm34 - 36" / 86.4 - 91. 4cm

Women's Bottoms

SIZEHIPWAIST
XS32 - 34" / 81.3 - 86.4 cm22 - 24" / 55.9 - 61 cm
S34 - 36" / 86.4 - 91.4 cm24 - 26" / 61 - 66 cm
M36 - 38" / 91.4 - 96.5 cm26 - 28" / 66 - 71.1 cm
L38 - 40" / 96.5 - 101.6 cm28 - 30" / 71.1 - 76.2 cm
XL40 - 42" / 101.6 - 106.7 cm30 - 32" / 76.2 - 81.3 cm
XXL42 - 44" / 106.7 - 111.8 cm32 - 34" / 81.3 - 86.4 cm
XXXL44 - 46" / 111.8 - 116.8 cm34 - 36" / 86.4 - 91.4 cm

Women's Gloves

WOMEN'S SIZEHAND WIDTHHAND LENGTH
S (6)6 - 6.7" / 155 - 169 mm6.3 - 6.7" / 160 - 169 mm
M (7)6.7 - 7.4" / 170 - 189 mm6.7 - 7.2" / 170 - 18 mm
L (8)7.4 - 8" / 190 - 204 mm7.3 - 7.7" / 185 - 195 mm
XL (9)8 - 8.3" / 205 - 210 mm7.7 - 8" / 196 - 205 mm

Women's Socks

SOCK SIZEMEN'S US SHOEEU SHOE
S4 - 6.536 - 39
M7.5 - 940 - 42
L9.5 - 1143 - 45
XL12 - 13.546 - 48

Women's Shoes

EU SIZEUS WOMEN'S
365
376
37.56.5
386.5
38.57
397.5
39.58
408.5
40.58.5
419
41.59.5
4210.5
42.510.5
4310.5

Youth Gloves

YOUTH SIZEHAND WIDTHHAND LENGTH
XS (3)5.2 - 5.6" / 133 - 142 mm5.9 - 6" / 150 - 154 mm
S (4)5.6 - 5.9" / 143 - 152 mm6 - 6.3" / 155 - 159 mm
M (5)6 - 6.4" / 153 - 162 mm6.3 - 6.5" / 160 - 165 mm
L (6)6.4 - 6.8" / 163 - 172 mm6.5 - 6.7" / 165 - 169 mm

Youth Bike Helmets

YOUTH SIZECIRCUMFERENCE (IN)CIRCUMFERENCE (CM)
XS (Scamp Model)17.7" - 19.2"45 - 49
S (Scamp Model)19.2" - 20.8"49 - 53
XS (Dime Model)18.5" - 20"47 - 51
S (Dime Model)20" - 21.6"51 - 55
Universal Child18.5" - 21.2"47 - 54
Universal Youth (Ages 5+)19.6" - 22.4"50 - 57

Youth Snow Helmets

YOUTH SIZECIRCUMFERENCE (IN)CIRCUMFERENCE (CM)
XS19" - 20.4"48.5 - 52
S20.4" - 21.8"52 - 55.5
M21.8" - 23.2"55.5 - 59
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Berkeley, CA 94703
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Long Beach, CA 90815
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Fountain Valley, CA 92708
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Redwood City, CA 94063
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San Francisco, California 94103
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San Francisco, CA 94129
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Walnut Creek, CA 94598
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Article #100220349001
Description

The heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS®, the market-leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and performance. In addition to advanced head protection, the Helios's 15 Wind Tunnel vents provide exceptional cooling power that's enhanced by our patented Roc Loc 5 Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. It's the ideal match for your road and gravel adventures.

  • MIPS Spherical - essentially an invisible low-friction layer sandwiched within two layers of EPS foam, the result is a reduction of rotational forces and the elimination of the plastic slip plane of the original MIPS design. Redirects impact energy by allowing the helmet's exterior liner to rotate independently of the interior liner in an angled impact.
  • Independent, in-mold liners with spherical ball-and-socket design
  • Hardbody lower shell
  • Polycarbonate shell
  • Number of vents: 15
  • Spherical technology, powered by MIPS
  • 15 wind tunnel vents with internal channeling
  • Gender: Unisex
  • Fit System: Roc Loc 5 Air
  • Two EPS foam liners with progressive layering
  • Certification: Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older
  • Circumference: 23.2 - 24.8" / 59–63 cm
  • Product Weight: 9.5 oz / 270 g (Size M)
  • Country of origin: China
  • Best For
    Road
  • Fit System
    Roc Loc 5 Air
  • Rotational Impact Protection
    MIPS Spherical
  • Weight
    9.5 oz / 270 g
Product Reviews

Review Snapshot

by PowerReviews

5.0

1 ReviewWrite a Review
0%
of respondents would recommend this to a friend

Ratings Distribution

Reviewed by 1 customer

Super light and comfy

Submitted 2 years ago

By Ken

From Walnut Creek

Verified Buyer

Comments about Matte White/Silver Fade / L

Upgraded from my old Synthe version 1. This helmet is much more comfortable with the spherical mips design. It feels much more secure on my head and the extra ventilation is a nice touch as well. Highly recommend!

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