The FLEX-AST 5 Denim Pants are protective riding jeans reimagined for everyday wear.

Engineered to exceed performance specifications and CE certification standards, these jeans offer discreet, built-in protection with refined detailing and a modern wash and finish - making them an ideal choice for riders who want all-day comfort and everyday practicality with built-in moto-specific protection.

Designed with a lightweight monolayer stretch denim construction and a clean, tapered fit, they deliver all-day comfort and casual styling without compromising on safety.

Casual Styling, Moto Protection: Clean, lifestyle denim aesthetic with built-in protection - the perfect everyday riding jeans.

Premium Comfort: Lightweight monolayer denim with built-in mechanical stretch offers riders premium comfort and everyday wearability.

Tailored Fit: Regular tapered fit for a modern silhouette that transitions effortlessly from road to street.

Protective Armour Inside: Equipped with Nucleon Flex Plus knee armour for enhanced comfort, breathability, and premium protection.

Adjustable Armour Placement: Three-position adjustable knee protector pockets allow for a personalised fit and optimal impact coverage.

Features:

• Engineered for Performance: Designed to meet Alpinestars’ FLEX-AST comfort specifications, the high-performance monolayer construction delivers lightweight durability and long-lasting comfort.
• Certified A Garment: Meets the safety standards as a CE certified Class A Garment, ensuring optimal protection and performance.
• Certified Safety Performance: Exceeds CE abrasion and tear strength thresholds by 20% in final wash and finish.
• Nucleon Flex Plus Knee Armour: Level 1 slim-profile protectors with 3D shaping and breathability for all-day comfort and protection.
• Knee Protector Positioning Pocket: the pants feature 3-position, adjustable knee armour pocket, for convenient positioning of the protectors for an optimal coverage and a perfectly tailored fit.
• Hip Protection Ready: Compatible with optional Bioflex Level 1 hip protectors—flexible, adaptive, and low-profile for discreet safety.
• Comfortable Stretch Blend: Durable, lightweight fabric composition of 53% cotton, 30%+ polyester, and 17% polyamide offers a lightweight feel with built-in stretch for all-day comfort across varying climates.
• Durable Construction: Hidden external double stitching and overlock seams ensure long-term structural integrity and lasting performance in impact-prone areas.
• Ventilated Armour Pockets: Lightweight and breathable protector pockets are designed to maintain airflow , while securing the armour for effective impact protection and enhanced comfort.
• Classic Denim Aesthetic: Heritage-inspired details include selvedge-look interior seam stitching with colour contrast thread and subtle Alpinestars logo embroidery on the coin pocket, delivering an authentic denim finish.
• Ergonomic Waistline: A raised back waist provides enhanced coverage and comfort in the riding position.
• Functional Storage: Deep, easy-access hand pockets are designed for practicality - even while seated on the bike - keeping essentials secure and within reach.