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The Aria™ Spherical shield helmet boasts remarkable comfort on the mountain while offering a futuristic look with modern performance features. You can easily pull the shield out and over the helmet and back down without any fuss—a great option for those who wear glasses.
You’re also sure to appreciate the VIVID lens that’s seamlessly integrated with the helmet, Spherical Technology™, powered by MIPS®, which aids in the reduction of rotational energy during certain impacts, and Thermostat Control so you can manage the temperature within.
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|
ADULT SUPER FIT BIKE HELMET SIZE |
CIRCUMFERENCE |
|
S |
51 - 55 cm |
|
M |
55 - 59 cm |
|
L |
59 - 63 cm |
|
XL |
63 - 65 cm |
|
YOUTH BIKE HELMET 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 BIKE HELMET |
CIRCUMFERENCE |
|
S |
51 - 53 cm |
|
M |
51 - 55 cm |
|
L |
55 - 59 cm |
|
XL |
59 - 63 cm |
|
ADULT UNIVERSAL BIKE HELMET |
CIRCUMFERENCE |
|
Women Adult |
50 - 57 cm |
|
Unisex |
54 - 61 cm |
|
Extra Large |
58 - 65 cm |
SNOW HELMET SIZE GUIDE
|
ADULT SNOW HELMET SIZE |
CIRCUMFERENCE |
|
S |
52 - 55.5 cm |
|
M |
55.5 - 59 cm |
|
L |
59 - 62.5 cm |
|
XL |
62.5 - 65 cm |
|
YOUTH SNOW HELMET SIZE |
CIRCUMFERENCE |
|
XS |
48.5 - 52 cm |
|
S |
52 - 55.5 cm |
|
M |
55.5 - 59 cm |
MEN’S TOPS SIZE GUIDE
|
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 |
WOMEN’S TOPS SIZE GUIDE
|
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 |
MEN’S BOTTOMS SIZE GUIDE
|
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 |
WOMEN’S BOTTOMS SIZE GUIDE
|
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 |
|
MEN'S GLOVE 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 GLOVE 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 GLOVE 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 |
- |
