Seller notes

6D Helmets® - ATR-2 Phase Helmet (choose your size and color) Their name 6D is a reference to the engineering term 6 Degrees of Freedom, which refers to the ability to move 3 dimensionally in space about the Cartesian coordinate system of X,Y and Z, including rotation about each axis. Their Omni-Directional Suspension system utilizes this term to maximize its ability to absorb and mitigate energy. 6D Helmets® are dedicated to the relentless pursuit of brain protection. This has become their ch...

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