Head: Measure circumference of head just above top of ears and eyebrows.
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F01011900-110-003
Head: Measure circumference of head just above top of ears and eyebrows.
Waist: Measure under arms, around the fullest part of the chest. Keep tape level across back, comfortably loose.
Chest: With arm fully extended, measure center back of neck at the spine to the wrist bone.
Chest: Measure under arms, around the fullest part of the chest. Keep tape level across back, comfortably loose.
Inseam: Without shoes, measure inside of leg, from groin to floor.
Helmet Sizing | US Hat Size | Inches | Centimeters |
X-Small
|
6 5/8 - 6 3/4 |
20 7/8 - 21 1/8 |
53 - 54 |
Small
|
6 7/8 - 7 |
21 5/8 - 21 7/8 |
55 - 56 |
Medium
|
7 1/8 - 7 1/4 |
22 1/2 - 22 5/8 |
57 - 58 |
Large
|
7 3/8 - 7 1/2 |
23 1/4 - 23 1/2 |
59 - 60 |
X-Large
|
7 5/8 - 7 3/4 |
24 - 24 1/4 |
61 - 62 |
2X-Large
|
8 |
24 3/4 - 25 |
63 - 64 |
3X-Large
|
8 3/4 |
25 1/4 - 25 3/4 |
64 - 65 |
4X-Large |
9 |
26 - 26 1/4 |
66 - 67 |
Youth Helmets | US Hat Size | Inches | Centimeters |
Youth Small |
6 |
18 1/8 - 18 7/8 |
47 - 48 |
Youth Medium |
6 1/8 - 6 1/4 |
19 1/4 - 19 5/8 |
49 - 50 |
Youth Large |
6 3/8 - 6 1/2 |
20 - 20 1/2 |
51 - 52 |
Men's Sizing | X-Small | Small | Medium | Large | X-Large | 2X-Large | 3X-Large |
Chest |
34 - 36 |
36 - 38 |
39 - 41 |
42 - 44 |
45 - 47 |
48 - 50 |
52 - 54 |
Sleeve |
27 |
28 |
30 |
32 |
34 |
36 |
36 |
Waist |
30 |
32 |
34 |
36 |
38 |
40 |
42 |
Inseam |
29 |
30 |
31 |
32 |
33 |
34 |
34 |
Short Inseam |
29 |
29 |
30 |
30 |
31 |
31 |
31 |
Tall Inseam |
34 |
34 |
35 |
35 |
36 |
36 |
36 |
Gloves |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
Women's Sizing | X-Small | Small | Medium | Large | X-Large | 2X-Large |
Chest |
30 |
32 |
34 |
36 |
38 |
40 |
Sleeve |
24 |
26 |
28 |
30 |
32 |
34 |
Waist |
28 |
30 |
32 |
34 |
36 |
38 |
Inseam |
29 |
30 |
32 |
34 |
36 |
38 |
Gloves |
5 |
6 |
7 |
8 |
9 |
n/a |
Head: Measure circumference of head just above top of ears and eyebrows.
Waist: Measure under arms, around the fullest part of the chest. Keep tape level across back, comfortably loose.
Chest: With arm fully extended, measure center back of neck at the spine to the wrist bone.
Chest: Measure under arms, around the fullest part of the chest. Keep tape level across back, comfortably loose.
Inseam: Without shoes, measure inside of leg, from groin to floor.
Helmet Sizing | US Hat Size | Inches | Centimeters |
X-Small
|
6 5/8 - 6 3/4 |
20 7/8 - 21 1/8 |
53 - 54 |
Small
|
6 7/8 - 7 |
21 5/8 - 21 7/8 |
55 - 56 |
Medium
|
7 1/8 - 7 1/4 |
22 1/2 - 22 5/8 |
57 - 58 |
Large
|
7 3/8 - 7 1/2 |
23 1/4 - 23 1/2 |
59 - 60 |
X-Large
|
7 5/8 - 7 3/4 |
24 - 24 1/4 |
61 - 62 |
2X-Large
|
8 |
24 3/4 - 25 |
63 - 64 |
3X-Large
|
8 3/4 |
25 1/4 - 25 3/4 |
64 - 65 |
4X-Large |
9 |
26 - 26 1/4 |
66 - 67 |
Youth Helmets | US Hat Size | Inches | Centimeters |
Youth Small |
6 |
18 1/8 - 18 7/8 |
47 - 48 |
Youth Medium |
6 1/8 - 6 1/4 |
19 1/4 - 19 5/8 |
49 - 50 |
Youth Large |
6 3/8 - 6 1/2 |
20 - 20 1/2 |
51 - 52 |
Men's Sizing | X-Small | Small | Medium | Large | X-Large | 2X-Large | 3X-Large |
Chest |
34 - 36 |
36 - 38 |
39 - 41 |
42 - 44 |
45 - 47 |
48 - 50 |
52 - 54 |
Sleeve |
27 |
28 |
30 |
32 |
34 |
36 |
36 |
Waist |
30 |
32 |
34 |
36 |
38 |
40 |
42 |
Inseam |
29 |
30 |
31 |
32 |
33 |
34 |
34 |
Short Inseam |
29 |
29 |
30 |
30 |
31 |
31 |
31 |
Tall Inseam |
34 |
34 |
35 |
35 |
36 |
36 |
36 |
Gloves |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
Women's Sizing | X-Small | Small | Medium | Large | X-Large | 2X-Large |
Chest |
30 |
32 |
34 |
36 |
38 |
40 |
Sleeve |
24 |
26 |
28 |
30 |
32 |
34 |
Waist |
28 |
30 |
32 |
34 |
36 |
38 |
Inseam |
29 |
30 |
32 |
34 |
36 |
38 |
Gloves |
5 |
6 |
7 |
8 |
9 |
n/a |
Sacrifice nothing with the next-generation comfort and performance of the bestselling 509 Altitude 2.0 Offroad Carbon Fiber Pro Helmet. Elevated in every respect, it features the MIPS Brain Protection System for the highest levels of safety. Hand lay-up carbon fiber composite construction makes it lighter, stronger, and sleeker than anything before it. A precisely engineered fit and innovative venting keep you cool and comfortable while the Fidlock® magnetic strap buckle makes for easy one-handed operation.
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