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![509 FZN LVL 1 Base Layer Pant 509 FZN LVL 1 Base Layer Pant](https://cdn11.bigcommerce.com/s-tdkjvabppo/images/stencil/300x300/products/2687/46531/image__65259.1696246682.jpg?c=1)
Experience The Comfort and Performance difference using 509's Active Layering System featuring Cold Armor technology. Cold Armor is a blend of technical materials constructed to wick moisture and create a cold blocking barrier for those frigid days. Pairing 509's base layers with 509's outerwear creates a high performance layering system that works together to keep you dry and comfortable. Starting with our lightest base layer, the LVL[1] is a next to skin layer designed to be close fitting and actively work to wick away moisture creating a comfortable in even the harshest conditions.