Alpinestars ST-1 Waterproof Textile Motorcycle Trousers
Colour: Black


Complementing the ST-1 WP Jacket, the ST-1 WP Pants are the perfect choice for riders seeking all-weather, waterproof construction and Alpinestars ergonomic mobility. Made from a blend of 600D poly fabric materials, these pants feature ripstop fabric reinforcements on the inner legs. With a new streamlined construction, the ST-1 WP Pants deliver modern style and premium rider comfort, especially on wet, rainy days. The detachable thermal liner provides warmth during cold mornings and evening rides, making these pants an excellent option for adventure touring riders looking for stylish and minimalistic touring gear with year-round comfort and optimum wet weather performance.
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Fixed waterproof liner ensures guaranteed waterproof performance.
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New, ergonomic ACTIVE touring fit with pre-curved legs, 3D ergonomic knees, and a comfortable crotch construction for excellent freedom of movement and premium riding comfort.
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Ergonomic zippered front pockets offer generous storage capacity for enhanced utility and everyday practicality.
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Detachable 80g thermal liner features a zipper connection to securely anchor the liner to the pants.
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Constructed from 600D poly fabric blend with ripstop fabric reinforcements on the inner legs for improved connection and contact with the bike.
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Fixed mesh liner enhances rider comfort.
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Lower leg hook and loop ankle adjusters and waist volume adjusters provide a tailored fit.
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Pant connection zipper allows attachment to an Alpinestars motorcycling jacket, ensuring a secure fit and preventing wind ingress.
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Reflective detailing on the thighs adds visibility during early morning or evening rides.
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CE Level 1 rated Nucleon Flex Plus knee armor delivers effective impact protection with a 3-tiered color-coded inner pocket system for custom positioning.
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The Nucleon Flex Plus Level 1 knee armor is highly flexible and breathable, providing high levels of impact protection while maintaining a thin profile for optimal rider comfort.
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Ripstop fabric reinforcements on the inner legs offer effective abrasion resistance.
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Fully CE certified motorcycling garment to CE - Category II EN 17092-4:2020 - A Class.
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CE Level 1 Nucleon Flex Plus impact protection, Category II EN 17092-6:2020 - C Class Impact.
The ST-1 WP Pants are designed for riders who value style, versatility, and protection, making them an ideal choice for adventure touring in any weather. Stay comfortable and confident on every ride with the ST-1 WP Pants.
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Alpinestars - Mens Textile Trousers Sizes
Alpinestars Mens Textile Trouser Size | XS | S | M | L | XL | 2XL | 3XL | 4XL | 5XL |
Waist Size (in) | 28" | 30" | 32" | 34" | 36" | 38" | 40" | 42" | 44" |
Waist Size (cm) | 72cm | 77cm | 82cm | 87cm | 92cm | 97cm | 102cm | 107cm | 112cm |
Leg Lengths | Short, 30", Regular: 32", Long 34" |
*This size chart is a guide for reference, it does not guarantee an exact fit. Please select a size from the drop down menu according to your measurements.