Big Agnes Copper Spur HV UL2 vs Sea to Summit Alto TR2

Weight and specs compared for 2026 — and which one to choose.

Both weigh the same at 1,060 g, so choose on features, price and fit.

Spec	Big Agnes Copper Spur HV UL2	Sea to Summit Alto TR2
Weight	1,060 g · 1.060 kg · 2.34 lb	1,060 g · 1.060 kg · 2.34 lb
Brand	Big Agnes	Sea to Summit
Category	Shelter	Shelter

Big Agnes Copper Spur HV UL2

1,060 g

Ultralight 2-person freestanding tent. Best-in-class weight.

Full details →

Sea to Summit Alto TR2

1,060 g

Ultralight 2-person tent with tension ridge architecture.

Full details →

Big Agnes Copper Spur HV UL2 vs Sea to Summit Alto TR2: which should you buy?

On weight these two are identical (1,060 g), so your decision comes down to features, fit and price. Check the full details and current price for each above.

See where both rank against everything else in this category on the lightest shelter page, or browse the full gear weight database.

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