Alpinestars AST-1 Waterproof Pants

Posted on: February 23rd, 2014 by Road Rider MCA

The Alpinestars AST-1 Waterproof pants are simple, effective and comfortable riding pants for winter weather protection and all-year durable road coverage. Flex panels above the knees and articulating knee panels enhance comfort in the riding position while the pre-curved legs further reduce bunching and unnecessary flapping fabric. The waterproof sealed seams on the zippered leg entry operate smoothly and prevent water from entering through the zipper. The AST-1s are an excellent choice for on-the-go riding and commuting.

The knee armor on the AST-1s can be vertically adjusted to accommodate different riders, and the cut is roomy enough to be worn over jeans. Size down if you want a more form-fitting look for all-day wear, and add a thermal base layer for added warmth.

Alpinestars AST-1 WP Pants

  • 600 Denier fabric with polyurethane coating and water-repelling treatment
  • Stretch panels above the knees for superior flexibility
  • Waterproof and breathable design with nylon lining and taped seams
  • Vented mesh panels
  • Waist and leg adjustment
  • 1200D poly fabric reinforcements on the seat and knees with PU coating and water repelling treatment
  • Reflective piping for increased visibility
  • Polyurethane injected 3D Astars logos
  • Knee protector compartment with foam padding can be upgraded to CE-certified Bionic SX Knee Protectors


  • Available in sizes S-4XL

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