The best-selling Alpha Infinity uses innovative LIFA INFINITY technology, which delivers extreme waterproof/breathable protection. The insulation is light, warm Primaloft Black Eco. An H2FLOW ventilation system enables you to retain or release heat as needed, so you can hold an optimal temperature when you’re working hard. 

• PrimaLoft® BLACK Eco
• Fully seam sealed
• 2-layer construction
• 2-way mechanical stretch fabric
• Durable Water Repellency (DWR) treatment
• Primaloft® Black Eco 60g