The premium single-layer stretch construction is rigorously optimized with laser perforations and ventilated fourchettes to ensure maximum airflow and lightweight comfort

and 3D comfort mesh

An ultra-lightweight CE and UKCA certified protection jacket offering excellent upper body protection against impacts

100% Polyurethane

the KMX-9 V3 S Suit Youth is the perfect choice for both entry and intermediate level racers

youth fluid portl jersey textile The premium single-layer stretch constructionExpertly designed for young off road riders, the 2026 Youth Fluid Portal Jersey leverages Alpinestars' premier motocross technology to deliver a total performance look and relaxed fit. The lightweight, moisture wicking polyfabric construction features an ergonomic cut and an extended rear for superior mobility and coverage on tough terrain. Optimized for riders aged 5 to 15, this jersey ensures breathable comfort and durability for all day riding.