1. Micro-perforated polyester with 12% spandex creates a ventilated, flexible main chassis built specifically for the high-output demands of enduro and downhill racing
2. Ultra-stretch inserts with 15% elastane on the sleeves and chest provide the unrestricted arm movement essential for technical race sections
3. Bonded collar and bonded cuffs give a clean, precise finish that integrates properly with race helmets, protective gear, and gloves
1. Race-specific construction and fit are optimised for competition gravity riding rather than casual trail use or longer XC efforts
2. Micro-perforated construction prioritises maximum ventilation which can feel exposed in windy or cold conditions
3. At £89.99, this is the premium tier of the A-Supra range, though the specification is commensurate with the price
When Alpinestars say the A-Supra Race Jersey draws on decades of experience equipping the best two-wheel riders in the world, that claim has weight. The A-Supra Race is the jersey Alpinestars build for competition gravity mountain biking, and the specification reflects that intent without compromise.
The main body and sleeves are constructed from soft, lightweight, micro-perforated polyester with 12% spandex. Micro-perforation creates direct airflow paths through the fabric, managing the significant heat generation that comes from hard racing efforts, both during physical pedalling sections and during sustained high-speed descending where aerodynamic cooling dominates. The spandex content in the main body means the jersey moves with body position changes rather than pulling or restricting.
Ultra-stretch fabric inserts with 15% elastane are positioned on the sleeves and chest, the two areas where race-position body movement is most dynamic. These panels are engineered to move precisely with the rider — allowing full shoulder rotation during cornering, chest expansion during heavy physical efforts, and arm extension through technical features — without creating drag or pulling back. This level of freedom of movement is genuinely different from what a standard gravity jersey provides.
Bonded cuffs and collar complete the race-ready construction. Both are finished to integrate cleanly with gloves, protective gear, and full-face or enduro helmets, with no rough edges or stitching lines that create pressure points during a race run. The longer drop tail maintains clean coverage over gravity-specific shorts and back protectors throughout the riding position.
The A-Supra Race Jersey is for enduro racers, downhill competitors, and serious gravity trail riders who want race-level jersey specification. The micro-perforated polyester, ultra-stretch elastane panels, and bonded construction are all targeted at riders who push hard enough that these features make a real performance difference. It suits competitive riders from elite to amateur who want to wear the same level of kit Alpinestars’ top athletes use.
– Main body and sleeves: soft, lightweight, micro-perforated polyester with 12% spandex for ventilation and flexibility
– Ultra-stretch fabric inserts with 15% elastane on the sleeves and chest for unrestricted movement
– Bonded cuffs for clean integration with gloves and protective gear
– Bonded collar for comfort and clean fit with helmets
– Racing style graphic
– Longer drop tail
– Performance fit
The A-Supra Race Jersey at £89.99 is a technically complete gravity racing jersey. Micro-perforated construction, ultra-stretch elastane panels, and bonded collar and cuffs all serve the specific demands of competition gravity MTB — and all of them are designed to help you go faster.
The A-Supra Race Jersey is exactly what it says on the tin: a competition gravity jersey built to Alpinestars’ highest MTB jersey specification, with micro-perforated polyester, ultra-stretch elastane panels, and bonded construction throughout. If you race enduro or downhill and want a jersey that’s built for the purpose, this is it.
1. Micro-perforated polyester with 12% spandex creates a ventilated, flexible main chassis built specifically for the high-output demands of enduro and downhill racing
2. Ultra-stretch inserts with 15% elastane on the sleeves and chest provide the unrestricted arm movement essential for technical race sections
3. Bonded collar and bonded cuffs give a clean, precise finish that integrates properly with race helmets, protective gear, and gloves
1. Race-specific construction and fit are optimised for competition gravity riding rather than casual trail use or longer XC efforts
2. Micro-perforated construction prioritises maximum ventilation which can feel exposed in windy or cold conditions
3. At £89.99, this is the premium tier of the A-Supra range, though the specification is commensurate with the price