ALPINESTARS ST 1 WATERPROOF PANTS
The Alpinestars ST-1 WP Pants are the ideal companion to the ST-1 WP Jacket, designed for riders who demand year-round comfort, waterproof protection, and unrestricted mobility. Engineered for touring and everyday riding, these pants offer a clean, modern aesthetic combined with rugged performance features tailored for all-weather use.
Constructed from a durable blend of 600D poly-fabric, the ST-1 WP Pants deliver reliable abrasion resistance while maintaining a lightweight feel. Reinforced ripstop panels are strategically placed on the inner legs to enhance durability in high-contact areas, ensuring the pants stand up to the demands of long-distance rides and challenging weather conditions.
A key highlight of the ST-1 WP Pants is their integrated waterproof membrane, which provides excellent weatherproofing to keep riders dry and comfortable in wet conditions. The new streamlined construction not only improves overall fit and comfort but also adds a modern, minimalistic touch to the pants’ design, making them suitable for both on- and off-bike wear.
For colder temperatures, the pants come equipped with a detachable thermal liner that offers added warmth during chilly morning starts or evening commutes. When temperatures rise, the liner can be easily removed, making the pants highly versatile for multi-season use.
The ergonomic design includes pre-curved legs and stretch inserts that support a natural riding posture and enhance overall flexibility. Adjustable waist straps ensure a customized fit, while zippered leg openings make it easy to pair the pants with a variety of riding boots.
Whether you’re touring across country lines or commuting through a sudden downpour, the Alpinestars ST-1 WP Pants deliver reliable weather protection, functional comfort, and a stylish, minimalist look—making them a smart choice for riders who want performance without compromise.

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