protective ground cover for Blacktail 4 tent 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. Features Compatible with Blacktail 4 tents featuring Tiplok(TM) Tent BucklesFast Fly setup available - stake out your footprint, insert your tent poles into corners, drape your fly over the top, and buckle it in for an even lighter, smaller packing setupFully compatible with Blacktail 4 models made after 2020 - may be compatible with older models, without Fast Fly capability Specs Total Weight:13oz*Packed Size:9.5" x 7" x 2"Footprint Weight:13oz Materials Recycled 75D polyester taffeta with 1500mm waterproof polyurethane coating and a water-repellent finish without intentionally added PFASAll seams taped with waterproof, solvent-free polyurethane tape (No PVC or VOC&';s)