Alpinestars Flex-AST 8 Denim Pants, men's urban motorcycle riding jeans in medium blue, front view on a model wearing casual sneakers, AA-rated single-layer denim with protective features

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Flex-AST-8 Jeans

£189.99

AA ClassCoolmax®

Designed for everyday road riding, the Jeans combine AA-rated single-layer A-TRAACX technical denim with COOLMAX® moisture management and low-profile Level 2 protection for lasting comfort, mobility, and a classic denim look on daily and extended rides.

Color:Medium Blue

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Flex-AST-8 Jeans

£189.99

Technical Specifications

Style

urban contemporary

CE Certification

AA Class

Technologies

A-TRAACX Technology

Coolmax®

Cordura®

Main Material

A-TRAACX Technical Denim

Protection

Nucleon Morph STEALTH Knee Protector - Level 2
Nucleon Morph STEALTH Hip Protector - Level 2

Key Features

Construction

Classic regular straight fit
Regular straight fit provides a timeless silhouette with comfort and mobility on and off the bike. Short Jeans and long versions are also available to accommodate a wider range of riders and provide additional fit options.

Advanced technical denim construction
Single-layer A-TRAACX technical denim combines CORDURA®, COOLMAX® technology, cotton, and Nylon 6.6 yarns for abrasion resistance, durability, moisture management, and long-lasting everyday riding comfort.

COOLMAX® moisture management
Integrated COOLMAX® filament yarn wicks moisture away from the body to help keep riders cool, dry, and comfortable in warm or variable riding conditions.

Durable stretch construction
Multi-stretch denim construction provides enhanced mobility and unrestricted movement on and off the bike, while reinforced dual seams, overlock stitching, and double stitching enhance structural strength and durability.

Advanced protection
AA-rated construction features ultra-slim Nucleon Morph STEALTH Level 2 knee and hip protectors for effective impact protection, extensive coverage, and a discreet profile. Three-position knee protector pockets, spaced 3cm apart and identified by color-coded stitching, allow protector height to be adjusted for optimal coverage and a personalized fit.

Everyday functionality and detailing
Traditional five-pocket construction and a metal zipper fly provide practical storage and a secure closure. Selvedge-style finishing helps prevent fraying, while a leather back patch, branded belt loop and rivets, and an embroidered Astar back-pocket accent complete the construction with signature Alpinestars detailing.

Reinforced Seam Construction

Hidden dual seams and overlock stitching on the outer legs, combined with double stitching and internal red color-contrast overlock stitching, enhance structural strength and long-lasting durability.

AA-Rated Riding Denim

The A-TRAACX single-layer technical denim combines CORDURA®, COOLMAX® technology, cotton, and Nylon 6.6 yarns to deliver exceptional abrasion resistance, premium durability and long-lasting everyday riding comfort.

Long-Lasting Comfort

Durable multi-stretch denim construction provides enhanced mobility, lasting comfort, and unrestricted movement on and off the bike. Integrated COOLMAX® filament yarn wicks moisture away from the body to help keep riders cool, dry, and comfortable in changing conditions.

Premium Detailing

Leather back patch, branded belt loop and rivets, and embroidered Astar back pocket accent add distinctive finishing details.

Distinctive Interior Stitching

Contrast stitching and white A-TRAACX branding on the lower leg reinforce the technical construction and provide distincitve visual identify for clear in-store product communication.

Advanced Knee and Hip Protection

Low-profile, 10 mm Nucleon Morph STEALTH Level 2 knee and hip protectors provide extended coverage, effective impact protection, efficient airflow, and lightweight comfort. Ultra-slim and adaptive, they contour to the rider's knees and hips for all-day comfort.

Key Features

Construction

Classic regular straight fit
Regular straight fit provides a timeless silhouette with comfort and mobility on and off the bike. Short Jeans and long versions are also available to accommodate a wider range of riders and provide additional fit options.

Advanced technical denim construction
Single-layer A-TRAACX technical denim combines CORDURA®, COOLMAX® technology, cotton, and Nylon 6.6 yarns for abrasion resistance, durability, moisture management, and long-lasting everyday riding comfort.

COOLMAX® moisture management
Integrated COOLMAX® filament yarn wicks moisture away from the body to help keep riders cool, dry, and comfortable in warm or variable riding conditions.

Durable stretch construction
Multi-stretch denim construction provides enhanced mobility and unrestricted movement on and off the bike, while reinforced dual seams, overlock stitching, and double stitching enhance structural strength and durability.

Advanced protection
AA-rated construction features ultra-slim Nucleon Morph STEALTH Level 2 knee and hip protectors for effective impact protection, extensive coverage, and a discreet profile. Three-position knee protector pockets, spaced 3cm apart and identified by color-coded stitching, allow protector height to be adjusted for optimal coverage and a personalized fit.

Everyday functionality and detailing
Traditional five-pocket construction and a metal zipper fly provide practical storage and a secure closure. Selvedge-style finishing helps prevent fraying, while a leather back patch, branded belt loop and rivets, and an embroidered Astar back-pocket accent complete the construction with signature Alpinestars detailing.