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Outdoor Research

Adults • Kids

Adult Sizing Chart for Hats S-XL
  Small Medium Large X Large
US 6⅞ 7⅛ 7⅜ 7⅝
Inches 21⅝ 22½ 23¼ 24
All measurements are in inches and refer to head size, not garment dimensions.





Adult S/M and L/XL Hats
  S/M L/XL
US 6⅞ - 7⅛ 7⅜ - 7⅝
Inches 21⅝ - 22½ 23¼ - 24
Adult One Size Hats
  One Size
US 7⅛ - 7⅝
Inches 22½ - 24
All measurements are in inches and refer to head size, not garment dimensions.





Kids' Sizing Chart for Hats XS-L
Kids X Small Small Medium Large
Age 1Y 1 - 3Y 3 - 6Y 6 - 12Y
Inches 18½ 20 21 22½
All measurements are in inches and refer to head size, not garment dimensions.





Kids' XS/S and M/L Hats
Kids XS/S M/L
Age 1 - 3Y 3 - 12Y
Inches 18½ - 20 21 - 22½
All measurements are in inches and refer to
head size, not garment dimensions.