Helmet Sizing Chart
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TRON Helmet Sizing Chart

Size 20K
Small/Medium     21.25" - 22.8" 
Medium/Large     22.5" - 24" 

Bauer & Nike Bauer Helmet Sizing Chart

Size 9900 9500 8500 7500 5500 5100 4500 1500
X-Small           19.2 - 21.2"  20.0 - 21.2"  19.6 - 21.6" 
Small 20.4 - 22.4"  20.5 - 22.0"  20.4 - 22.0"  20.0 - 22.0"  20.5 - 22.5"  20.4 - 22.4"  21.2 - 22.4"  20.4 - 22.4" 
Medium 22.0 - 23.6"  21.5 - 23.0"  21.6 - 23.2"  21.6 - 23.2"  21.5 - 23.5"  21.6 - 23.6"  22.0 - 23.2"  22.0 - 23.6" 
Large 23.2 - 24.8"  22.5 - 24.5"  22.8 - 24.0"  22.8 - 24.4"  22.5 - 24.5"  22.8 - 24.8"  23.2 - 24.8"  22.4 - 24.0" 
X-Large 23.6 - 25.2"  23.5 - 25.0"  23.2 - 24.8"      23.6 - 25.6"  24.0 - 25.6"   

CCM Helmet Sizing Chart

Size Vector V10 Vector V08 Vector V05 Vector V04
Small 20 - 22" 20 7/8 - 23" 20 - 21 21/32" 20 - 21 21/32"
Medium 21.5 - 23" 22.5 - 24.25" 21 1/4 - 22 27/32" 21 1/4 - 22 27/32"
Large 22.8 - 25" 23 - 24 7/8" 22 - 23 5/8" 22 - 23 5/8"

Reebok Helmet Sizing Chart

Size 8K 6K 4K
Small 20.0 - 22.0" 20.0 - 22.0" 20.0 - 22.0"
Medium 21.5 - 23.0" 21.5 - 23.0" 21.5 - 23.0"
Large 22.8 - 25.0" 22.8 - 25.0" 22.8 - 25.0"
X-Large 23.25 - 25.22"   23.25 -25.22"