Cheapest AlpinestarsNucleon Flex Pro Chest Protector Insert - Anthracite
★★★★★4.942 reviews
Alpinestars Nucleon Flex Pro Chest Protector Insert - Anthracite Ergonomic adaptive design provides high levels of movement and comfort Open design structure ensures high levels of airflow and ventilation CE Level 2 performance Slim low profile, appears discreet in the garment off the bike Protector SizeLenght (CM)Width (CM)Small23cm13.5cmLarge26cm16.5cm...
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Last checked23 May 2026
CategoryMotorcycle Accessories
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Alpinestars Nucleon Flex Pro Chest Protector Insert - Anthracite Ergonomic adaptive design provides high levels of movement and comfort Open design structure ensures high levels of airflow and ventilation CE Level 2 performance Slim low profile, appears discreet in the garment off the bike Protector SizeLenght (CM)Width (CM)Small23cm13.5cmLarge26cm16.5cm Incorporating innovative Nucleon Flex Pro technology that is lightweight and ventilated, the Nucleon Flex family are ergonomically engineered for comfort, convenience, performance, and protection.
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Standard option£27.01
Rider Feedback
Rider verdict
★★★★★4.942 reviews
Customers are overwhelmingly satisfied with these chest protectors, citing their perfect fit, substantial feel, and comfort. They highlight the ease of installation into various Alpinestars jackets and suits, describing the protectors as thin, flexible, and unobtrusive. The protectors provide confidence and peace of mind, being lightweight yet sturdy, and are considered a worthwhile and valuable upgrade for additional protection. Despite initial concerns about bulkiness, many customers found them unnoticeable when worn and appreciate the level of protection offered.
Alpinestars, a truly world class brand of motorcycle apparel. Founded in the early 1960s by Sante Mazzarolo, Alpinestars has grown to be a world leading manufacturer of professional racing products such as leather jackets, jeans, boots and 1 piece suits. Whilst their leathers are worn by some of the biggest names in bike racing, they also specialise in high performance textile jackets, jeans and gloves. From F1 to Karting, the World Rally Championship to NASCAR, Alpinestars work with the very best drivers and riders to bring design innovations to all aspects of professional motor-sport.
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