Sea to Summit Ether Light XT vs Sea to Summit Ultralight XR Insulated (Short)
Weight and specs compared for 2026 — and which one to choose.
Ultralight air sleeping pad with 3D construction for comfort.
Full details →Ultralight insulated sleeping pad at 13.8 oz (390g) for 66-inch length with 3.6 R-value, lightest inflatable option available.
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Sea to Summit Ether Light XT vs Sea to Summit Ultralight XR Insulated (Short): which should you buy?
If saving weight is your priority, the Sea to Summit Ultralight XR Insulated (Short) wins — at 390 g it is 45 g (10%) 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.