Hyperlite Mountain Gear Flat Tarp 8'6" vs Sea to Summit Alto TR2
Weight and specs compared for 2026 — and which one to choose.
Minimalist Dyneema Composite Fabric square tarp (8'6"x8'6"). Extremely packable, 100% waterproof. Versatile ultralight bivy shelter for experienced campers.
Check price Full details →Ultralight 2-person tent with tension ridge architecture.
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Hyperlite Mountain Gear Flat Tarp 8'6" vs Sea to Summit Alto TR2: which should you buy?
If saving weight is your priority, the Hyperlite Mountain Gear Flat Tarp 8'6" wins — at 255 g it is 805 g (76%) lighter than the Sea to Summit Alto TR2 (1,060 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.