Big Agnes Copper Spur HV UL2 Footprint - To extend the life of your tent floor, we recommend using a Big Agnes footprint or ground cloth. The Big Agnes footprint also enables you to pitch a lightweight, Fast Fly shelter while leaving the tent body behind. The Fast Fly configuration requires the footprint, tent fly, poles, and stakes. Pitch with the Copper Spur HV UL tents Fast Fly Compatible Compatible with the 2020 Copper Spur HV UL & mtnGLO tents only. Not compatible with older models. Imported Nylon Rip-stop 1200mm waterproof polyurethane coating