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ALPINESTARS Flex-AST Cargo Pants Black-Black Short

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143,92 199,95
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Description

The FLEX-AST Cargo motorcycle trousers from Alpinestars combine a military-inspired cargo style with technical motorcycle gear. These motorcycle trousers are made from a soft stretch polycotton twill (97% cotton/polyester blend with 3% elastane), offering both long-term durability and plenty of freedom of movement.

The regular-fit FLEX-AST Cargo motorcycle trousers feature tapered legs with elasticated cuffs. In practice, this means sliding your motorcycle boots inside the motorcycle trousers will be a challenge. You can choose between a regular length and a short version that is five centimetres shorter. A Velcro waist adjuster and buckle closure provide a personalised fit. Large belt loops, a metal D-ring, metal eyelets and herringbone tape accents on the pockets underline the rugged cargo design.

The light stretch fabric of the FLEX-AST Cargo motorcycle trousers allows maximum mobility without compromising wear-resistance and longevity. Mesh lining at the thighs and knees improves breathability. The soft inner lining and soft fabric in the hip protector pockets ensure long-lasting comfort on longer rides. The hip protectors themselves are available as an option.

Two cargo pockets with hidden press studs, two front and two back pockets, plus a zipped pocket on the right leg provide practical storage. Tone-on-tone stitching, selvedge-look inner seams and Alpinestars-branded buckle, snaps and zip pullers give these motorcycle trousers a clean, minimalist look.

Nucleon Flex Plus knee protectors are flexible, ventilated and low profile. These Level 1 protectors are height-adjustable for a more personalised fit.

These motorcycle trousers meet EN 17092-4:2020 – Class A and are CE Category II certified.

There is maintenance clothing and then there is clothing maintenance. Good, solid motorcycle clothing is an investment in comfort and personal safety. So invest in its maintenance after your purchase and enjoy your gear for longer.

We put the best tips & tricks on this maintenance page.

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Technical specifications

Atmosphere
Style cargo
Category
Type jeans
Comfort
Gender men
Waterproof not waterproof
Fitting tapered fit
Safety
Knee protectors yes, level 1 CE approved Nucleon Flex Plus protectors
Hip protectors no, can be fitted with CE-approved protectors
Wear-resistant fabric interwoven
Reinforced areas none
Removable elastic foot straps no
Certification class A
Ergonomics
Knee protectors adjustable in height yes
Stretch zone yes, full length pants made of stretch material
Materials
Color black
Outer material 57% cotton, 40% polyester, and 3% elastane
Product identifiers
EAN 8059347625041 (KS); 8059347625058 (KM); 8059347625065 (KL); 8059347625072 (KXL); 8059347625089 (K2XL); 8059347625096 (K3XL); 8059347625102 (K4XL)
MPN 3320426/1100-S (KS); 3320426/1100-M (KM); 3320426/1100-L (KL); 3320426/1100-XL (KXL); 3320426/1100-XXL (K2XL); 3320426/1100-3XL (K3XL); 3320426/1100-4XL (K4XL)

Customer service

Questions about ALPINESTARS Flex-AST Cargo Pants Black-Black Short? We answer within 48h!

Stock

Size Art.no. Drongen Willebroek Nivelles Brugge Zaventem Tournai Herk-de-Stad Alleur
KS AS3320426/1100-KS
KM AS3320426/1100-KM
KL AS3320426/1100-KL
KXL AS3320426/1100-KXL
K2XL AS3320426/1100-K2XL
K3XL AS3320426/1100-K3XL
K4XL AS3320426/1100-K4XL

Last modified on Wednesday, January 14, 2026 at 19:18

Accessories

ALPINESTARS Hip protector set Bio-Flex L (21 x 13 cm)
ALPINESTARS Hip protector set Bio-Flex L (21 x 13 cm)
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Atmosphere
Style 5 pocket cargo 5 pocket
Category
Type jeans jeans jeans
Comfort
Gender men men men
Waterproof not waterproof not waterproof not waterproof
Fitting regular fit tapered fit slim fit
Safety
Knee protectors yes, level 1 CE approved SEESMART protectors yes, level 1 CE approved Nucleon Flex Plus protectors yes, level 1 CE approved SEESMART protectors
Hip protectors yes, level 1 CE approved SEESMART protectors no, can be fitted with CE-approved protectors yes, level 1 CE approved SEESMART protectors
Wear-resistant fabric interwoven interwoven interwoven and second layer
Reinforced areas Cordura® woven into outer fabric none PWR | shield panels on seat, hip and knees, Cordura® woven into outer fabric
Removable elastic foot straps no no no
 
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