| CPC A42B 3/08 (2013.01) [A42B 3/145 (2013.01); A61F 9/06 (2013.01)] | 2 Claims |

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1. A helmet comprising:
a headgear assembly comprising:
a top strap;
a front strap;
a pair of hubs located between the top strap and the front strap; and
a pair of attachment bosses extending from the pair of hubs, wherein each of the attachment bosses is D-shaped; and
a replacement rear strap assembly attached to the headgear assembly, wherein the replacement rear strap assembly comprises:
a pair of adapter rings, wherein each of the pair of adapter rings comprises an adapter ring aperture that is D-shaped and is sized and configured to be placed over the corresponding attachment boss; and
a replacement rear strap extending between the pair of adapter rings.
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