Check the listing for details. Men's 509 FZN LVL 1 Base Layer Pant. Condition: New with tags. Listed at 44.95 USD. Stay warm and dry in the harshest conditions with 509’s Active Layering System featuring Cold Armor technology. Pairing 509’s base and mid layers with 509’s outerwear creates a high-performance layering system that works together to keep you comfortable no matter what. The system starts with our lightest base layer, the 509 FZN Base LVL 1 Pant—a close fitting next-to-skin layer designed to actively wick away heat-robbing moisture so you stay dry and comfortable all day long. KEY FEATURESLVL [1] - 509's lightest next to skin base layerLightweight, moisture-wicking polyester technical materialStylish full body sublimation printComfortable brushed interior fabricSized to be fitted. Size up for loose fitSPECSMaterials: Cold Armor™ PolyesterWarmth: LVL [1]