Flex-AST 5 Denim Pants SFI hand-mapped racing fit for unrivalled

hand-mapped racing fit for unrivalled lever control

Featuring a full 3D mesh main shell and Nucleon Flex Plus Level 1 armor

and even as the temperature rises

• Small expansion pocket boosts capacity

the 2026 Youth Supertech Vista Jersey is Alpinestars' lightest pro-level motocross apparel

Flex-AST 5 Denim Pants SFI hand-mapped racing fit for unrivalledEngineered for urban riders seeking everyday protection, the Flex AST 5 Denim Pants blend casual denim styling with CE certified motorcycle safety. Lightweight monolayer stretch construction exceeds CE abrasion standards by 20% and features Nucleon Flex Plus Level 1 knee armor with 3 position adjustable pockets for a custom fit. The regular tapered silhouette delivers all day comfort on and off the bike with discreet, built in moto specific protection.