1. Motorcycling
  2. Forward
  3. Apparel
  4. Forward
  5. Pants
  6. Forward
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Alpinestars Flex-AST 5 Denim Pants Short, Blue Motorcycle Jeans, worn with Black T-shirt, casual riding style, protective denim construction
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short
Flex-AST 5 Denim Pants - Short

Flex-AST 5 Denim Pants - Short

Regular price
839,00 zł
Earn 189 points with Alpinestars Membership
Size
Size guide
Color Indigo Washed
Flex-AST 5 Denim Pants - Short Flex-AST 5 Denim Pants - Short
Length
Regular

CE-Certified Garment

A Class

Try our size and fit calculator
>
Engineered for urban riders, the Flex-AST 5 Denim Pants combine protective monolayer stretch denim with a clean, tapered fit for all-day comfort and casual styling. CE certified Class A performance exceeds abrasion and tear standards by 20%, featuring Nucleon Flex Plus Level 1 knee armor in adjustable pockets. Lifestyle denim styling conceals moto-specific protection, with hip protector compatibility and refined detailing for seamless road-to-street transitions.
  • Monolayer Stretch Denim: Single-layer construction eliminates bulk while delivering CE-certified protection and all-day comfort
  • Nucleon Flex Plus Knee Armor: CE Level 1 protectors included—3D-shaped, breathable, and slim for discreet protection
  • 3-Position Adjustable Pockets: Customize knee armor placement for personalized fit and optimal impact coverage
  • Exceeds CE Class A Standards: 20% better abrasion and tear resistance than baseline safety certification
  • Modern Tapered Fit: Urban-ready silhouette with riding ergonomics including raised back waist and accessible pockets
  • CE Class A Certified Garment: Meets EN 17092 Class A safety standards for protective motorcycle apparel with verified impact and abrasion resistance.
  • CE Level 1 Knee Protection: Nucleon Flex Plus knee armor certified to EN 1621-1 standard provides impact absorption across the knee joint.
  • Adjustable Knee Armor Placement: Three-position protector pockets enable precise vertical positioning for optimized coverage and personalized fit.
  • Enhanced Abrasion Performance: Exceeds CE EN 17092 abrasion and tear strength thresholds by 20% in tested zones for reliable slide protection.
  • Hip Armor Compatible: Accepts optional Bioflex CE Level 1 hip protectors for expandable side-impact coverage (armor sold separately).
  • Monolayer stretch denim construction engineered to meet FLEX-AST performance specifications
  • Fabric composition: 53% cotton, 30% polyester, 17% polyamide with integrated mechanical stretch
  • Hidden external double stitching and overlock seams in impact-prone areas for structural integrity
  • Ventilated armor pockets with mesh lining and three-position adjustable knee protector placement
  • Raised back waist panel for extended coverage in riding position
  • Deep-cut hand pockets with reinforced pocket openings
  • Selvedge-look interior seam construction with contrast thread stitching
  • Embroidered Alpinestars logo detail on coin pocket
  • Free shipping above 100 EUR
  • Free 30 day exchanges and returns
EAN 8054866078521
SKU 3321626-77-28
Complete the look
Chrome Shoes
Chrome Shoes Chrome Shoes

Chrome Shoes

contemporary shoes 4 colors
Regular price
749,00 zł
Expand
Ride Tech V2 Top Short Sleeve Summer
Alpinestars Ride Tech V2 Top Short Sleeve Summer, Black with Red accents, compression base layer shirt, geometric textured pattern with mesh ventilation, fitted performance wear for motorcycle riding Ride Tech V2 Top Short Sleeve Summer

Ride Tech V2 Top Short Sleeve Summer

racing/sport top layers - short sleeve 1 color
Regular price
309,00 zł
Expand
Compatible Protection
Nucleon Flex Pro Knee Protectors
Nucleon Flex Pro Knee Protectors Nucleon Flex Pro Knee Protectors

Nucleon Flex Pro Knee Protectors

racing/sport knee protectors 1 color
Regular price
179,00 zł

For product size: 28

Choose different size
Nucleon Flex Plus Knee Protectors
Nucleon Flex Plus Knee Protectors Nucleon Flex Plus Knee Protectors

Nucleon Flex Plus Knee Protectors

racing/sport knee protectors 1 color
Regular price
129,00 zł

For product size: 28

Choose different size
Bioflex Hip Protectors
Alpinestars Bioflex Hip Protectors, Black, honeycomb pattern impact protection pads, kidney-shaped design with smooth borders, CE certified motorcycle armor inserts Bioflex Hip Protectors

Bioflex Hip Protectors

racing/sport hip protectors 1 color
Regular price
89,00 zł

For product size: 28

Choose different size
Image 69858896740730
Image 69697606353274

Flex-AST 5 Denim Pants

The Flex-AST 5 Denim Pant is a lightweight protective denim pant providing everyday casual comfort and style. Designed for leisure riding and all-day comfort both on and off the bike.

Image 69884156313978
Image 69882932822394
Image 69842476564858

Comfort Construction

Monolayer lightweight construction with built in mechanical stretch.
Image 69842476499322

Convenient Storage

Deep hand pockets for riding comfort when loaded.
Image 69842476532090

Casual Fit

High back waistline for riding comfort and protection with a regular tapered fit.
Image 69842486493562

Customizable Protection

CE Level 1 Nucleon Flex Plus knee armor delivers ventilated, low-profile protection with adjustable internal pockets for a custom fit with Bioflex Level 1 armor at hip.
Image 69848951128442

Recommendations

Supertech R10 Solid Helmet
Alpinestars Supertech R10 Solid Helmet, Black, Motorcycle Racing Helmet, Carbon Fiber Construction, Blue Tinted Visor, Aerodynamic Design, White Logo, Premium MotoGP-Level Protection Supertech R10 Solid Helmet

Supertech R10 Solid Helmet

racing/sport helmets 2 colors
Regular price
4.399,00 zł
KX V2 Balaclava
KX V2 Balaclava KX V2 Balaclava

KX V2 Balaclava

karting balaclavas 1 color
Regular price
109,00 zł
Nucleon Plasma Back Protector Insert
Alpinestars Nucleon Plasma Back Protector Insert, Red, Motorcycle Protection, Ergonomic Zigzag Design with Ventilation Holes, Impact Absorption Technology, CE Certified Back Protection for Riding Jackets Nucleon Plasma Back Protector Insert

Nucleon Plasma Back Protector Insert

racing/sport back protectors 1 color
Regular price
259,00 zł
Bionic Action V2 Protection Jacket
Alpinestars Bionic Action V2 Protection Jacket, Black, Motorcycle Body Armor with Hexagonal Mesh Ventilation, Hard Shell Padding on Chest and Shoulders, Adjustable Arm and Waist Straps, Textured Fabric Construction Bionic Action V2 Protection Jacket

Bionic Action V2 Protection Jacket

enduro protection jackets 3 colors
Regular price
789,00 zł
Corp Shift Beanie
Alpinestars Corp Shift Beanie, Black Knit Beanie with White Logo, Unisex Winter Hat, Soft Knitted Material, Motorsport Style Headwear Corp Shift Beanie

Corp Shift Beanie

sportswear beanies 2 colors
Regular price
89,00 zł
Ride Tech V2 Top Long Sleeve Summer
Alpinestars Ride Tech V2 Top Long Sleeve Summer, Black and Red, Motorcycle Base Layer Shirt, Breathable Mesh Construction, Athletic Fit with Red Piping Detail Ride Tech V2 Top Long Sleeve Summer

Ride Tech V2 Top Long Sleeve Summer

racing/sport top layers - long sleeve 1 color
Regular price
309,00 zł
Top Categories Forward
Moto Forward
MX Forward
Auto Forward
MTB Forward