Eclipse Spherical

Minimum quantity	Discount
Buy 2 +	Get 10% discount

Minimum quantity

Discount

Buy 2 +

Get 10% discount

Bike

Accessories

Helmets

Road High End

Eclipse Spherical, Giro Eclipse Spherical side

Eclipse Spherical, Giro Eclipse Spherical back

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Giro

Eclipse Spherical

$180.00 $299.95

Color Matte White/Silver

Size S Size Chart

Bike Helments (unisex)

ADULT SUPER FIT SIZE	CIRCUMFERENCE (IN)	CIRCUMFERENCE (CM)
S	20" - 21.6"	51 - 55
M	21.6" - 23.2"	55 - 59
L	23.2" - 24.8"	59 - 63
XL	24" - 25.5"	61 - 65

Universal Fit Women's Bike Helmets

UNIVERSAL FIT WOMENS SIZE	CIRCUMFERENCE (IN)	CIRCUMFERENCE (CM)
UW	19.6" - 22.4"	50 - 57

Snow Helments (unisex)

ADULT SIZE	CIRCUMFERENCE (IN)	CIRCUMFERENCE (CM)
S	20.4" - 21.8"	52 - 55.5
M	21.8" - 23.2"	55.5 - 59
L	23.2" - 24.6"	59 - 62.5
XL	24.6" - 25.5"	62.5 - 65

Men's Tops

SIZE	CHEST	WAIST
XS	33 - 35" / 83.8 - 88.9 cm	27 - 29" / 68.6 - 73.7 cm
S	35 - 37" / 88.9 - 94 cm	29 - 31" / 73.7 - 78.7 cm
M	38 - 40" / 96.5 - 101.6 cm	31 - 33" / 78.7 - 83.8 cm
L	41 - 43" / 104.1 - 109.2 cm	33 - 35" / 83.8 - 88.9 cm
XL	44 - 46" / 111.8 - 116.8 cm	35 - 37" / 88.9 - 94 cm
XXL	47 - 49" / 119.4 - 124.5 cm	37 - 39" / 94 - 99.1 cm
XXXL	50 - 52" / 127 - 132.1 cm	39 - 41" / 99.1 - 104.1 cm

Men's Bottoms

SIZE	HIP	WAIST
28 (XS)	33 - 35" / 83.8 - 88.9 cm	27 - 29" / 68.6 - 73.7 cm
30 (S)	35 - 37" / 88.9 - 94 cm	29 - 31" / 73.7 - 78.7 cm
32 (M)	38 - 40" / 96.5 - 101.6 cm	31 - 33" / 78.7 - 83.8 cm
34 (L)	40 - 42" / 101.6 - 106.7 cm	33 - 35" / 83.8 - 88.9 cm
36 (XL)	42 - 44" / 106.7 - 111.8 cm	35 - 37" / 88.9 - 94 cm
38 (XXL)	44 - 46" / 111.8 - 116.8 cm	37 - 39" / 94 - 99.1 cm
40 (XXXL)	46 - 48" / 116.8 - 121.9 cm	39 - 41" / 99.1 - 104.1 cm

Men's Gloves

MEN'S SIZE	HAND WIDTH	HAND LENGTH
XS (6)	6.3 - 7" / 160 - 178 mm	5.9 - 6.5" / 150 - 164 mm
S (7)	7" / 179 - 200 mm	6.5 - 7" / 165 - 179 mm
M (8)	8 - 8.6" / 201 - 219 mm	7 - 7.6" / 180 - 194 mm
L (9)	8.7 - 9" / 220 - 234 mm	7.7 - 8" / 195 - 204 mm
XL (10)	9.25 - 9.8" / 235 - 249 mm	8 - 8.6" / 205 - 21 9mm
XXL (11)	9.85 - 10" / 250 - 265 mm	8.7 - 9.25" / 220 - 235 mm
XXXL (12)	10.4 - 10.6" / 265 - 270 mm	9.25 - 9.6" / 235 - 245 mm

Men's Socks

SOCK SIZE	MEN'S US SHOE	EU SHOE
S	4 - 6.5	36 - 39
M	7.5 - 9	40 - 42
L	9.5 - 11	43 - 45
XL	12 - 13.5	46 - 48

Men's Shoes

EU SIZE	US MEN'S
36	-
37	-
37.5	-
38	-
38.5	-
39	6.5
39.5	7
40	7.5
40.5	7.5
41	8
41.5	8.5
42	9.5
42.5	9.5
43	9.5
43.5	10
44	10.5
44.5	11
46	12
46.5	12.5
47	13
48	13.5
49	14
50	15

Women's Tops

SIZE	CHEST	WAIST
XXS	30 - 31" / 76.2 - 78.7 cm	22 - 24" / 55.9 - 61 cm
XS	32 - 33" / 81.3 - 83. cm	24 - 26" / 61 - 66 cm
S	34 - 35" / 86.4 - 88.9 cm	26 - 28" / 66 - 71.1 cm
M	36 - 37" / 91.4 - 94 cm	28 - 30" / 71.1 - 76.2 cm
L	38 - 39" / 96.5 - 99.1 cm	30 - 32" / 76.2 - 81.3 cm
XL	39 - 41" / 99.1 - 104.1 cm	32 - 34" / 81.3 - 86.4 cm
XXL	41 - 43" / 104.1 - 109.2 cm	34 - 36" / 86.4 - 91. 4cm

Women's Bottoms

SIZE	HIP	WAIST
XS	32 - 34" / 81.3 - 86.4 cm	22 - 24" / 55.9 - 61 cm
S	34 - 36" / 86.4 - 91.4 cm	24 - 26" / 61 - 66 cm
M	36 - 38" / 91.4 - 96.5 cm	26 - 28" / 66 - 71.1 cm
L	38 - 40" / 96.5 - 101.6 cm	28 - 30" / 71.1 - 76.2 cm
XL	40 - 42" / 101.6 - 106.7 cm	30 - 32" / 76.2 - 81.3 cm
XXL	42 - 44" / 106.7 - 111.8 cm	32 - 34" / 81.3 - 86.4 cm
XXXL	44 - 46" / 111.8 - 116.8 cm	34 - 36" / 86.4 - 91.4 cm

Women's Gloves

WOMEN'S SIZE	HAND WIDTH	HAND LENGTH
S (6)	6 - 6.7" / 155 - 169 mm	6.3 - 6.7" / 160 - 169 mm
M (7)	6.7 - 7.4" / 170 - 189 mm	6.7 - 7.2" / 170 - 18 mm
L (8)	7.4 - 8" / 190 - 204 mm	7.3 - 7.7" / 185 - 195 mm
XL (9)	8 - 8.3" / 205 - 210 mm	7.7 - 8" / 196 - 205 mm

Women's Socks

SOCK SIZE	MEN'S US SHOE	EU SHOE
S	4 - 6.5	36 - 39
M	7.5 - 9	40 - 42
L	9.5 - 11	43 - 45
XL	12 - 13.5	46 - 48

Women's Shoes

EU SIZE	US WOMEN'S
36	5
37	6
37.5	6.5
38	6.5
38.5	7
39	7.5
39.5	8
40	8.5
40.5	8.5
41	9
41.5	9.5
42	10.5
42.5	10.5
43	10.5

Youth Gloves

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

Youth Bike Helmets

YOUTH SIZE	CIRCUMFERENCE (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 Child	18.5" - 21.2"	47 - 54
Universal Youth (Ages 5+)	19.6" - 22.4"	50 - 57

Youth Snow Helmets

YOUTH SIZE	CIRCUMFERENCE (IN)	CIRCUMFERENCE (CM)
XS	19" - 20.4"	48.5 - 52
S	20.4" - 21.8"	52 - 55.5
M	21.8" - 23.2"	55.5 - 59

Quantity:

Important WARNING for California residents : Learn More

Best For: Road
Fit System: Roc Loc® 5.5 Air
Rotational Impact Protection: Mips
Weight: 270 gr. (size M)

The aerodynamic Eclipse Spherical is Giro's most sophisticated, stylish, and lightweight aero road helmet, and it's crafted with Spherical Technology powered by Mips®, so you can ride with more comfort and an additional layer of protection. Transfor

Transform Air technology: Streamlines airflow to reduce drag across multiple wind angles while maintaining aero performance in sprinting positions
14 Wind Tunnel vents: Active vents and internal channels pull cool air in and push heat out
Spherical Technology™ powered by Mips®: Ball-and-socket design redirects impact forces and reduces rotational energy
Progressive Layering™: Dual-density EPS foam manages both high- and low-speed impacts
Deep internal channeling: Enhances airflow for efficient cooling and heat exhaust
Roc Loc® 5.5 Air fit system: Suspended design boosts airflow and allows quick one-hand fit and tilt adjustments; reflective details improve visibility
Ionic+® padding: Permanent silver-based odor control keeps the helmet fresh
Weight: 270 gr. (size M)
Material/Composition: 42% EPS; 25% PC; 15% Nylon; 5% Polyester; 4% POM; 2% PU; 7% Fiberglass

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