The Copper Spur UL3 XL Footprint from Big Agnes is a tailored groundsheet designed to protect the floor of your Copper Spur UL3 XL tent. It creates a barrier between your tent’s floor fabric and rough or wet ground, helping to extend the life of your shelter and keeping moisture at bay.
Made from HyperBead™ 30D nylon ripstop with a 1500 mm waterproof silicon and polyurethane coating, this footprint offers a lightweight yet durable shield against abrasion, rocks and damp terrain. At just 0.227 kg and packing down to 20 × 13 × 5 cm, it slips easily into your pack without adding bulk, making it a sensible choice for backpackers who want to keep their tent floor in good shape without carrying unnecessary weight.
The 1500 mm hydrostatic head rating means the fabric can withstand a column of water 1.5 metres tall before seepage begins, providing reliable resistance to light rain and ground moisture. The “30D” in the nylon ripstop indicates a balance of fine thread thickness and tear resistance, so the material stays tough while remaining lightweight.