Outdoor Research Headwear Size Chart
| Adult Hat Sizes |
ONE SIZE
|
S/M
|
L/XL
|
Small
|
Medium
|
Large
|
X-Large
|
| US |
7 1/8-7 5/8
|
6 7/8 - 7 1/8
|
7 3/8 - 7 5/8
|
6 7/8
|
7 1/8
|
7 3/8
|
7 5/8
|
| IN. |
22 1/2-24
|
21 5/8 - 22 1/2
|
23 1/4 - 24
|
21 5/8
|
22.5
|
23 1/4
|
24
|
| Kid's Hat Sizes |
X-Small
|
Small
|
Medium
|
Large
|
| Age |
0-1
|
1-3
|
3-6
|
6-12
|
| IN. |
18 1/2
|
20
|
21
|
22 1/2
|