-
Nucleon Plasma Back Protector Insert -
Nucleon Plasma Full Back Protector Insert -
Nucleon KR-CELLi Back Protector Insert -
Nucleon Flex Pro Full Back Protector Insert -
Nucleon KR-1 CELLi Back Protector -
Nucleon Flex Pro Shoulder Protectors -
Nucleon Plasma Full Chest Protector Hook and Loop -
Nucleon Flex Plus Shoulder Protectors
All products loaded
Frequently asked questions Hide FAQs
What does J10-compatible mean for these protectors?
J10 is a compatibility reference used for protector inserts designed to fit specific Alpinestars garments with dedicated armor pockets. It is not a universal protector size and it is not a protection rating by itself.
If your jacket, suit, or other riding garment specifies J10 fitment, choose a protector from this collection so the insert sits flat, stays stable, and covers the intended impact zone inside the garment.
How do I choose the right J10-compatible protector for my garment?
Start with the body area listed on your garment or product page, such as back, chest, or shoulder, and then match the insert to the stated compatibility and size guidance. The correct protector should fill the armor pocket cleanly without folding, bunching, or leaving large gaps.
Many insert protectors are shaped around specific pocket layouts rather than universal dimensions, so the best check is always the garment label, product description, or pocket schematic. If you want to compare other insert options, you can also browse our protectors collection.
Are J10-compatible protectors CE certified, and what is the difference between Level 1 and Level 2?
Many J10-compatible inserts are CE certified, but the exact standard depends on the impact zone. As a general guide, back protectors typically reference EN 1621-2, chest protectors EN 1621-3, and shoulder or other limb protectors EN 1621-1.
Level 1 usually prioritizes lower bulk, flexibility, and airflow, while Level 2 is tested to a stricter impact-transmission threshold and is often chosen when riders want a higher margin of protection. Always confirm the exact CE marking and level on the individual product page before ordering.
Can I use J10-compatible protectors with a Tech-Air airbag system?
Sometimes, but compatibility depends on the specific garment and Tech-Air® setup. Airbag systems and passive armor inserts are designed to work together only when the garment has the correct internal space, approved construction, and stated compatibility.
Before combining inserts with an airbag-ready jacket or suit, use the Tech-Air® compatibility checker and review the available Tech-Air® systems. Follow the garment instructions closely, because some configurations may require specific insert types or placement rules.
How should I install and care for J10-compatible protector inserts?
Insert the protector into the dedicated internal pocket with the correct orientation, then check that it lies flat and remains centered over the intended protection zone when you are in a riding position. A properly fitted insert should stay stable inside the garment without twisting or migrating during movement.
For care, remove the protectors before washing the garment unless the care label says otherwise. Clean inserts with a damp cloth and mild soap only, then let them air dry away from direct heat or sunlight before reinstalling them.




