The Big Agnes Three Wire Bivy provides shelter from the storm and piece of mind for the solo camper or alpinist. Top shell features eVENT waterproof fabric while the bottom is durable, lightweight Cordura. The easily-pitched pole system provides good headroom and ventilation. The Three Wire also uses a DAC Featherlite NSL poleset, which feature an Eco-Friendly anodizing process that significantly reduces the use of hazardous chemicals, as well as Reverse Combi pole optimization for increased strength and weight savings.