Big Agnes Copper Spur UL4 Footprint

This footprint is cut to the Big Agnes Copper Spur UL4 floor plan, sitting underneath the tent to take the wear from ground contact, and it also enables a Fast Fly pitch with the fly, poles and stakes only. For a four-person tent, Fast Fly can meaningfully cut carried weight on trips where the group doesn't need full insect protection - for example, a short, dry-weather outing. Without the inner tent body you lose the bug netting and part of the weather barrier the full setup provides, so keep the complete tent for buggy or genuinely wet conditions.