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SIZE CHARTS

These size charts and conversions are meant to serve as a guide. We recommend you try-on before riding to ensure full comfort and performance.

BIKE HELMET SIZE GUIDE

HOW TO MEASURE YOUR SIZE

Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the Size Guide.

Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

ADULT SUPER FIT SIZE    CIRCUMFERENCE
S 51 - 55 cm
M 55 - 59 cm
L 59 - 63 cm
XL 63 - 65 cm
YOUTH SIZE CIRCUMFERENCE
XS (Scamp Model) 45 - 49 cm
S (Scamp Model) 49 - 53 cm
XS (Dime Model) 47 - 51 cm
S (Dime Model) 51 - 55 cm
Universal Child 47 - 54 cm
Universal Youth (Ages 5+) 50 - 57 cm
ADULT SUPER FIT FULL FACE CIRCUMFERENCE
S 51 - 53 cm
M 51 - 55 cm
L 55 - 59 cm
XL 59 - 63 cm
ADULT UNIVERSAL         CIRCUMFERENCE
Women Adult 50 - 57 cm
Unisex 54 - 61 cm
Extra Large 58 - 65 cm
Giro Size Chart

SNOW HELMET SIZE GUIDE

HOW TO MEASURE YOUR SIZE

Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the Size Guide.

Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

ADULT SIZE CIRCUMFERENCE
S 52 - 55.5 cm
M 55.5 - 59 cm
L 59 - 62.5 cm
XL 62.5 - 65 cm
YOUTH SIZE CIRCUMFERENCE
XS 48.5 - 52 cm
S 52 - 55.5 cm
M 55.5 - 59 cm
Giro Size Chart

MEN’S TOPS SIZE GUIDE

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your chest size, wrap a measuring tape around your natural chest, just under the arms. To determine your waist size, wrap a measuring tape around your natural waist. Then use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

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
Giro Size Chart

WOMEN’S TOPS SIZE GUIDE

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your chest size, wrap a measuring tape around your natural chest, just under the arms. To determine your waist size, wrap a measuring tape around your natural waist. Then use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

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
Giro Size Chart

MEN’S BOTTOMS SIZE GUIDE

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your waist size, wrap a measuring tape around your natural waist. To determine your hip size, wrap a measuring tape around the widest part of your hips. Then, use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

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
Giro Size Chart

WOMEN’S BOTTOMS SIZE GUIDE

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your waist size, wrap a measuring tape around your natural waist. To determine your hip size, wrap a measuring tape around the widest part of your hips. Then, use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

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
Giro Size Chart

GLOVES SIZE GUIDE

MEASURING YOUR HAND FOR THE BEST FIT

You can measure the length and width of your hand as illustrated above, and use the Size Guide to determine your size.

1. Wrap the tape measure around your hand at the widest part of the palm, and lightly close your hand to get your Hand Width measurement.

2. Once you have that measurement recorded, use a tape measure to determine the length of your hand from the tip of your longest finger to the base of your palm at the wrist. This is your Hand Length measurement.

3. You can then compare the measurements of your hand with the data supplied in the Size Guide to determine the best fitting size for you..

Giro Size Chart
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
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
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

SOCK SIZE GUIDE

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

FOOTWEAR SIZE CONVERSIONS

EU SIZE  US MENS US WOMENS
36 - 5
37 - 6
37.5 - 6.5
38 - 6.5
38.5 - 7
39 6.5 7.5
39.5 7 8
40 7.5 8.5
40.5 7.5 8.5
41 8 9
41.5 8.5 9.5
42 9.5 10.5
42.5 9.5 10.5
43 9.5 10.5
43.5 10 -
44 10.5 -
44.5 11 -
46 12 -
46.5 12.5 -
47 13 -
48 13.5 -
49 14 -
50 15 -

SIZE GUIDES

These size charts and conversions are meant to serve as a guide. We recommend you try-on before riding to ensure full comfort and performance.

ADULT SUPER FIT SIZE     CIRCUMFERENCE
S 51 - 55 cm
M 55 - 59 cm
L 59 - 63 cm
XL 63 - 65 cm
YOUTH SIZE CIRCUMFERENCE
XS (Scamp Model) 45 - 49 cm
S (Scamp Model) 49 - 53 cm
XS (Dime Model) 47 - 51 cm
S (Dime Model) 51 - 55 cm
Universal Child 47 - 54 cm
Universal Youth (Ages 5+) 50 - 57 cm
ADULT SUPER FIT FULL FACE CIRCUMFERENCE
S 51 - 53 cm
M 51 - 55 cm
L 55 - 59 cm
XL 59 - 63 cm
ADULT UNIVERSAL          CIRCUMFERENCE
Women Adult 50 - 57 cm
Unisex 54 - 61 cm
Extra Large 58 - 65 cm
Giro Size Chart

HOW TO MEASURE YOUR SIZE

Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the Size Guide.

Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

ADULT SIZE CIRCUMFERENCE
S 52 - 55.5 cm
M 55.5 - 59 cm
L 59 - 62.5 cm
XL 62.5 - 65 cm
YOUTH SIZE CIRCUMFERENCE
XS 48.5 - 52 cm
S 52 - 55.5 cm
M 55.5 - 59 cm
Giro Size Chart

HOW TO MEASURE YOUR SIZE

Wrap a measuring tape around your head, keeping the tape level from front to back. Note the measurement and reference the Size Guide.

Note: Make sure the helmet fits with a little room when the fit system is loose, and sits low enough to protect your forehead without hindering your vision. Once you’ve got the right size, you can adjust the fit.

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
Giro Size Chart

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your chest size, wrap a measuring tape around your natural chest, just under the arms. To determine your waist size, wrap a measuring tape around your natural waist. Then use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

Size Chest Waist
XXS 30 - 31” / 76.2 - 78.7 cm 22 - 24” / 55.9 - 61 cm
XS 32 - 33” / 81.3 - 83.8 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 - 91.4 cm
Giro Size Chart

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your chest size, wrap a measuring tape around your natural chest, just under the arms. To determine your waist size, wrap a measuring tape around your natural waist. Then use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

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
Giro Size Chart

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your waist size, wrap a measuring tape around your natural waist. To determine your hip size, wrap a measuring tape around the widest part of your hips. Then, use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

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
Giro Size Chart

HOW TO MEASURE YOUR SIZE

Be sure to keep the tape level, and not too tight. To determine your waist size, wrap a measuring tape around your natural waist. To determine your hip size, wrap a measuring tape around the widest part of your hips. Then, use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.

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 - 219 mm
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
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 - 184 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
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
Giro Size Chart

MEASURING YOUR HAND FOR THE BEST FIT

You can measure the length and width of your hand as illustrated above, and use the Size Guide to determine your size.

1. Wrap the tape measure around your hand at the widest part of the palm, and lightly close your hand to get your Hand Width measurement.

2. Once you have that measurement recorded, use a tape measure to determine the length of your hand from the tip of your longest finger to the base of your palm at the wrist. This is your Hand Length measurement.

3. You can then compare the measurements of your hand with the data supplied in the Size Guide to determine the best fitting size for you..

SOCK SIZE EU SHOE MENS US SHOE
S 36 - 39 4 - 6.5
M 40 - 42 7.5 - 9
L 43 - 45 9.5 - 11
XL 46 - 48 12 - 13.5
EU SIZE US MENS US WOMENS
36 - 5
37 - 6
37.5 - 6.5
38 - 6.5
38.5 - 7
39 6.5 7.5
39.5 7 8
40 7.5 8.5
40.5 7.5 8.5
41 8 9
41.5 8.5 9.5
42 9.5 10.5
42.5 9.5 10.5
43 9.5 10.5
43.5 10 -
44 10.5 -
44.5 11 -
46 12 -
46.5 12.5 -
47 13 -
48 13.5 -
49 14 -
50 15 -