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The Big Agnes Copper Spur UL3 is a freestanding three-person, three-season backpacking tent that weighs 3.8 lbs and offers 41 sq ft of floor space with 43 inches of peak height. Its HyperBead fabric is claimed to be lighter, more waterproof and stronger than conventional tent fabrics, and dual side doors with two vestibules give each camper a dry entry and gear space. It suits weight-conscious backpackers and couples who want livable room without a heavy shelter. Against rivals like the MSR Hubba Hubba and NEMO Dragonfly, it trades a little floor width for a roomier feel and an awning-style door, and owners rate it highly for space-to-weight.
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Lowest price we've seen: $599.95 on Nov 12 at Sportsman's Guide. Tracked across 15 stores since Nov 12.
Owners rate the Copper Spur UL3 highly, praising its low weight for a three-person freestanding tent and its livable interior. Complaints center on tight floor space for three adults and the care ultralight fabrics require.
The Big Agnes Copper Spur UL3 is a freestanding, 3-person, 3-season dome tent for ultralight backpacking. The rainfly and floor use proprietary HyperBead fabric, which is 6% lighter, 25% more waterproof and 50% stronger than traditional fabrics, without added water repellent chemicals.
The freestanding, high-volume design gives generous living space, and the corners don't need to be staked out for a full pitch. It has two side-entry doors, each with its own vestibule. The awning-style doors can be propped with trekking poles (sold separately) or the included extra guylines. Dry entry and exit vestibules keep gear dry.
Inside, an oversized 3D bin pocket provides off-the-floor storage, and ceiling and side pockets add more. Multiple interior loops hold gear lofts, accessories and mtnGLO Tent & Camp Lights. The vestibule doors have low vent capability, there is a high vent on the fly, and double sliders on the vestibule zippers allow venting from the top or bottom. Reflective pre-cut guylines and reflective webbing show up in headlamp light.

