Technical Fabric Library - W

| Windbloc |


WINDBLOC® is a registered trademark of Malden Mills purchased by Versa Capital who formed a new company Polartec, LLC. Polartec® Windbloc® is designed to block 100% of wind and provide maximum protection from harsh elements and inclement weather. By embedding a breathable micro-porous laminate between a durable outer layer and lofted inner fibers we created a stronger balance between insulating warmth and performance stretch. This flexible versatility gives this protective fabric incredible resilience against the weather and abrasive elements without restricting comfort.


A barrier that doesn't back down against the harshest conditions and elements is essential for protective layer fabrics. Polartec® Windbloc® holds strong winds and all forms of moisture to eliminate the burden of carrying additional protective shell materials during activity.

This resilient material technology ensures the outside elements remain outside so core temperatures can retain maximum warmth and comfort in harsh conditions. By adding a polyurethane laminate membrane between a durable woven exterior and soft interior we developed the ability to block wind and water without limiting micro-climate breathability.


  • Windproof & water repellent
  • Comfortable stretch
  • Retains warmth
  • Durable
  • Easy care
  • Available in multiple styles and weights
  • Best Uses:
  • Windproof water resistant protection