The Alpha Insulated Pants from Arc'teryx are lightweight and extremely warm expedition hybrid 850 fill goose down and synthetic Coreloft™ insulated pants with fully separating side zippers and seam-taped extremely lightweight and strong 2-layer GORE-TEX® INFINIUM™ Hadron™ proprietary outer face fabric that is engineered with a liquid crystal polymer ripstop that makes this fabric as abrasion resistant as many other fabrics twice the weight.  The GORE-TEX® INFINIUM™ fabrics also block the wind while trapping and holding in more warmth than standard fabrics.  Other features include a belay loop compatible fly, harness accessible zippered thigh pocket, and hem adjusters to seal out snow and debris.  Designed for extremely cold bivouacs and alpine belays.

Details

• 2-Layer GORE-TEX® INFINIUIM™ N30p Outer Face Fabric
  
• 2-Layer GORE-TEX® INFINIUIM™ N20p-LCP Liquid Crystal Polymer Reinforcement Fabric in High Wear Areas
  
• 850 Fill European Goose Down
  
• Coreloft™ Continuous Synthetic Insulation in Moisture Prone Areas
• Fully Separating Side Zippers for Easy On and Off while wearing boots, crampons, or skis
• Belay Loop Compatible Fly
• Harness Accessible Zippered Thigh Pocket
• Hem Adjusters to Seal Out Snow and Debris
• Windproof
• Highly Water Resistant
• Highly Breathable
• Lightweight
• Durable
• Extremely Warm
• 15.3 oz (434 g)