Big Agnes Copper Spur UL5 Footprint

The Big Agnes Copper Spur UL5 Footprint is a custom-cut groundsheet for the Copper Spur UL5, one of Big Agnes's ultralight backpacking tents, placed under the floor to take abrasion from rocks and grit on backcountry pitches. Where the Bunk House and Big House footprints unlock a car-camping Shelter Mode, this one enables Fast Fly: pitching just the fly, poles and stakes for a lighter shelter on trips where the full tent body and its bug mesh aren't needed. Since the Copper Spur UL5 is already built around minimising pack weight, this footprint suits backpackers who want floor protection on rocky or scree-adjacent campsites without giving up the option to strip the setup down further on a mild-weather night.