Alpinestars Nucleon KR-Celli Back Protector Insert Large 6503919L

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$80

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Express $154Standard $87~0.5 kg

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About this item

This is the Alpinestars Nucleon KR-Celli back protector insert, size Large, part number 6503919L. It uses a triple-segmented polymeric shell that channels impact energy from the center outward while staying light and flexible, with a cell microstructure that adds breathability and adaptive comfort. The ergonomic shape with flexion grooves follows your back's curve through different riding positions, and the airmesh backing keeps you comfortable on long rides. Note this is the insert only, CE-certified to LEVEL standards, without straps.

Alpinestars Nucleon KR-Celli back protector insert, size Large, part number 6503919L
Triple-segmented shell built from a polymeric material blend for flexibility and low weight
Center-to-outside structural design balances impact force dispersion with energy absorption
Cell microstructure lets it flex, absorb impact, and stay breathable at the same time
Contoured shape with horizontal flexion grooves follows your back's natural curve in any riding position
Airmesh lining on the body side keeps you cool; CE-certified to LEVEL standards
Insert only — no straps included

Specifications

Size: Lg
Brand: Alpinestars
Warranty: Factory warranty
Manufacturer Part Number: 6503919L