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Nemo Equipment Tensor Elite Ultralight vs REI Co-op Magma 15

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

Nemo Equipment Tensor Elite Ultralight is the lighter option — 635 g lighter than the REI Co-op Magma 15 (75% less weight). If grams matter to you, that is the one to beat.
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Spec Nemo Equipment Tensor Elite Ultralight REI Co-op Magma 15
Weight 215 g · 0.215 kg · 0.47 lb 850 g · 0.850 kg · 1.87 lb
Brand Nemo Equipment REI Co-op
Category Sleep System Sleep System
Nemo Equipment Tensor Elite Ultralight
215 g

Lightest inflatable pad at 7.6oz with R-value 2.4. Ultra-compact packed size.

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REI Co-op Magma 15
850 g

850-fill down sleeping bag rated to 15°F. Great value.

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Nemo Equipment Tensor Elite Ultralight vs REI Co-op Magma 15: which should you buy?

If saving weight is your priority, the Nemo Equipment Tensor Elite Ultralight wins — at 215 g it is 635 g (75%) lighter than the REI Co-op Magma 15 (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 sleep system page, or browse the full gear weight database.

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