| Bionic Neck Support Sizing Table |
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| EU Size |
US Size |
Chest Circumference (cm) |
Chest Thickness (T) |
| Slim |
Normal |
Barrel |
| |
|
70 (27.5") |
- |
XS |
XS |
| |
|
75 (29.5") |
XS |
XS |
XS |
| |
|
80 (31.5") |
XS |
XS |
S |
| 42 |
|
85 (33.5") |
XS |
S |
S |
| 46 |
36 |
90 (35.5") |
S |
S |
M |
| 48 |
38 |
95 (37.4") |
S |
M |
M |
| 50 |
40 |
100 (39.4") |
M |
M |
L |
| 52 |
42 |
105 (41.4") |
M |
M/L |
L |
| 54 |
44 |
110 (43.3") |
M |
L |
L |
| 56 |
46 |
115 (45.25") |
L |
L |
- |
| 60 |
50 |
120 (47.25") |
L |
- |
- |
The Alpinestars Bionic Neck Support (BNS) is a structure which is designed to work with a helmet to reduce the risk and severity of a catastrophic neck injury (i.e. A paralyzing injury).
While no product can guarantee protection from all motorcycle injuries, due to the varied dynamics of accidents, the BNS is designed to substantially reduce the likelihood of a career ending neck injury although it must be stated at the outset that it, as with other such systems, may not prevent injuries occurring in all cases.
The BNS functions by providing an alternative load path for the energy that compresses the neck. If the helmet is in contact with the Bionic Neck Support at the moment of impact the overall load passing through the neck can be reduced, which may prevent a fracture from occurring.
The BNS also helps reduce the chance of muscular injuries associated with extremes of head movement.
While it is not possible to eliminate the risk of any form of injury, the BNS is designed to help prevent the most serious damage and minimize the risk of collateral injury as the impact load is channeled away from the neck.
When compared to soft ‘neck roll’ devices the protection afforded is significantly better because being soft, these devices simply deform, offering no protection against the damaging compressive forces.
As with any riding equipment, fit is critical to ensuring the most effective protection possible and riders should choose the equipment that is best suited to their body. No neck device should roll around over the shoulders.
