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Nucleon Plasma Back Protector Insert -
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Nucleon Plasma Full Back Protector Insert -
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Nucleon Flex Pro Full Back Protector Insert -
Nucleon KR-1 CELLi Back Protector -
Nucleon Plasma Full Chest Protector Hook and Loop
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Frequently asked questions Hide FAQs
What does S06 mean for compatible protectors?
S06 is a compatibility reference used to match a protector insert to the armor pocket design of specific Alpinestars garments. It identifies the pocket shape and fit interface the insert was designed for; it is not a universal size and it does not indicate a CE protection level by itself.
If your jacket, suit, or riding garment specifies S06 compatibility, choose an insert from this collection so the protector sits flat, stays stable, and covers the intended impact zone while riding.
How do I know if my jacket or suit needs an S06 protector?
Check the product page, inner labeling, hangtag information, or original garment documentation for the compatible protector code. The correct code is the key reference, because insert protectors are shaped for specific pocket layouts rather than universal fit across all garments.
If your gear does not explicitly list S06, do not assume the insert will fit correctly based on appearance alone. For broader options beyond this compatibility group, see our protectors collection.
Are S06-compatible protectors CE certified, and what is the difference between Level 1 and Level 2 armor?
Many compatible protector inserts are CE certified, but the exact certification depends on the body area. In general, limb protectors reference EN 1621-1, back protectors EN 1621-2, and chest protectors EN 1621-3.
Level 1 armor prioritizes low bulk, flexibility, and airflow, while Level 2 armor is tested to a stricter impact-transmission threshold and is typically chosen when riders want a higher margin of impact protection. Always confirm the exact certification and level on the individual product page before ordering.
Can I use S06-compatible protectors with a Tech-Air airbag system?
Potentially, but compatibility depends on the specific garment and Tech-Air® system. Airbag systems and passive armor inserts work together only when the garment was designed with the required clearance, pocket layout, and component setup.
Some Tech-Air® garments may require certain inserts, while others may specify a particular configuration to avoid excess bulk or interference. Use the Tech-Air® compatibility checker and review available Tech-Air® systems before combining S06 inserts with an airbag-equipped setup.
How should I install and care for an S06-compatible protector insert?
Insert the protector into the dedicated internal pocket with the correct orientation, then check that it lies flat without folding, bunching, or leaving large gaps. When the garment is worn in a riding position, the armor should remain centered over the intended protection zone and should not shift excessively.
Remove protector inserts before washing the garment unless the care label says otherwise. Clean the insert separately with a damp cloth and mild soap, let it air dry away from direct heat, and follow the garment care instructions for the outer shell.



