Altitude Sports
Altitude Sports

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Size of the adjustable helmets

Size S M L
Unisex (Inches) 20½ – 22 22 – 23½ 23½ – 25
Unisex (Centimeters) 52 - 56 56 - 60 60 - 64

To ensure this one-size helmet fits you, simply measure the circumference of your head by placing the measuring tape across your forehead, right above the ears.