Rockhard Helmets Size Chart

Rockhard Iron Maiden Killers Helmet
Adult
Size Inches Euro
X-Small 20 1/2" - 21 1/8" 54
Small 21 1/4" - 22 1/8" 56
Medium 22 3/8" - 23 1/8" 58
Large 23 1/4" - 23 3/4" 60
X-Large 23 7/8" - 24 3/4" 62
2X-Large 24 7/8" + 64
Rockhard American Classic Iron Maiden Killers Helmet
American Classic
Size Hat Size Centimeters
X-Small 6 3/4 - 6 7/8 54 - 55
Small 7 - 7 1/8 56 - 57
Medium 7 1/4 - 7 3/8 58 - 59
Large 7 1/2 - 7 5/8 60 - 61
X-Large 7 3/4 - 7 7/8 62 - 63
2X-Large 8 - 8 1/8 64 - 65
3X-Large 8 1/8 - 8 3/8 66 - 67

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.