Big Agnes Copper Spur HV UL1 vs Hyperlite Mountain Gear Flat Tarp

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

Hyperlite Mountain Gear Flat Tarp is the lighter option — 538 g lighter than the Big Agnes Copper Spur HV UL1 (63% less weight). If grams matter to you, that is the one to beat.

Spec	Big Agnes Copper Spur HV UL1	Hyperlite Mountain Gear Flat Tarp
Weight	850 g · 0.850 kg · 1.87 lb	312 g · 0.312 kg · 0.69 lb
Brand	Big Agnes	Hyperlite Mountain Gear
Category	Shelter	Shelter

Big Agnes Copper Spur HV UL1

850 g

Ultralight 1-person freestanding tent with large vestibule.

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Hyperlite Mountain Gear Flat Tarp

312 g

Minimalist ultralight tarp in Dyneema Composite Fabric with multiple guyout points. Versatile setup options for fast-and-light travel.

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Big Agnes Copper Spur HV UL1 vs Hyperlite Mountain Gear Flat Tarp: which should you buy?

If saving weight is your priority, the Hyperlite Mountain Gear Flat Tarp wins — at 312 g it is 538 g (63%) lighter than the Big Agnes Copper Spur HV UL1 (850 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

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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