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Nemo Equipment Tensor All-Season vs Sea to Summit Ether Light XT

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

Nemo Equipment Tensor All-Season is the lighter option — 35 g lighter than the Sea to Summit Ether Light XT (8% less weight). If grams matter to you, that is the one to beat.
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Spec Nemo Equipment Tensor All-Season Sea to Summit Ether Light XT
Weight 400 g · 0.400 kg · 0.88 lb 435 g · 0.435 kg · 0.96 lb
Brand Nemo Equipment Sea to Summit
Category Sleep System Sleep System
Nemo Equipment Tensor All-Season
400 g

All-season insulated pad at 14.1oz with R-value 5.4. Three-inch loft.

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Sea to Summit Ether Light XT
435 g

Ultralight air sleeping pad with 3D construction for comfort.

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Nemo Equipment Tensor All-Season vs Sea to Summit Ether Light XT: which should you buy?

If saving weight is your priority, the Nemo Equipment Tensor All-Season wins — at 400 g it is 35 g (8%) lighter than the Sea to Summit Ether Light XT (435 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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