Alpinestars ST‑1 Waterproof Jacket Grey/Black/Fluo Yellow

ST‑1 WP is a clean, functional all‑weather jacket designed for riders who want modern styling, reliable waterproof performance and year‑round comfort. The fixed waterproof liner ensures dependable wet‑weather protection, while the detachable thermal liner adds versatility. Fluo yellow accents enhance visibility and add a dynamic, sporty aesthetic.

Materials and Construction

The fixed waterproof membrane provides:

• 100% waterproof performance
• Comfort in rain and wind
• Durable reinforced structure

Ventilation & Climate Control

• Direct chest vent openings
• Increased surface area for improved airflow
• Detachable thermal liner (80g body / 80g sleeves)
• Stores easily in the large rear cargo pocket

Features

• Pre‑curved arms and ergonomic elbows
• Modern shoulder design with Alpinestars branding
• Adjustable collar, waist, biceps and cuffs
• Extended rear hem for riding coverage
• Pant connection zipper

Storage

• Slim ergonomic cargo pockets with expansion
• Large rear cargo pocket
• Zippered chest pocket
• Two internal mesh pockets (one waterproof)

Protection

• Nucleon Flex Plus Level 1 shoulder and elbow armor
• Tech-Air® Ready
• Pockets for chest and back protectors
• CE certified EN17092‑4:2020 – A Class

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The ST‑1 WP is ideal for riders who want a sporty, modern jacket that performs in all weather. The fixed waterproof liner keeps you dry, the ventilation keeps you cool, and the thermal liner keeps you warm when needed. Fluo yellow accents add visibility and a bold, dynamic look.

Highlights

• Fixed waterproof membrane
• Direct ventilation
• Detachable thermal liner
• CE Level 1 Nucleon Flex Plus armor
• Tech-Air® Ready
• Ergonomic cargo pockets
• Grey/Black/Fluo Yellow styling