Alpinestars ST-1 Summer Motorcycle Waterproof Pants

Alpinestars ST-1 Waterproof Pants

Designed to complement the ST-1 Waterproof Jacket, the Alpinestars ST-1 WP Pants deliver reliable all-weather performance with modern touring comfort. Built for adventure and touring riders, these pants combine waterproof protection, ergonomic mobility, and a clean, minimalist design—ideal for year-round riding in changing conditions.

Key Features

• All-Weather Waterproofing: Fixed waterproof liner ensures dependable protection in wet and rainy conditions.

• Ergonomic Touring Fit: ACTIVE touring fit with pre-curved legs, 3D ergonomic knees, and a comfort-focused crotch construction for excellent freedom of movement.

• Practical Storage: Ergonomic zippered front pockets offer secure and convenient storage for everyday essentials.

• Detachable Thermal Liner: 80g thermal liner provides added warmth during cold mornings and evening rides and can be easily removed as temperatures rise.

Construction

• Durable Materials: Constructed from a robust 600D polyfabric blend with ripstop fabric reinforcements on the inner legs for enhanced durability and improved contact with the bike.

• Comfort-Focused Design: Fixed mesh liner improves overall comfort during long rides.

• Year-Round Versatility: Removable 80g thermal liner allows adaptability across seasons.

• Adjustable Fit: Waist volume adjusters and hook-and-loop ankle closures ensure a tailored, secure fit.

• Jacket Connection: Integrated pant-to-jacket zipper allows secure attachment to compatible Alpinestars jackets, reducing wind ingress.

• Enhanced Visibility: Reflective detailing on the thighs improves visibility in low-light conditions.

Protection

• CE-Certified Protection: Fully CE certified to Category II EN 17092-4:2020 – Class A.

• Advanced Knee Armor: Equipped with CE Level 1 Nucleon Flex Plus knee protectors, featuring a three-position, color-coded inner pocket system for precise adjustment.

• Flexible & Breathable Armor: Nucleon Flex Plus knee armor offers high impact protection with excellent flexibility and a low-profile design for superior comfort.

• Abrasion Resistance: Ripstop reinforcements on the inner legs enhance abrasion resistance in key impact areas.

• Impact Certification: CE Level 1 impact protection certified to Category II EN 17092-6:2020 – Class C.