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Big Agnes Rapide SL Insulated vs Sea to Summit Ultralight Insulated

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

No winner on weight yet. The recorded weights have not both been verified on the same basis. Size, included parts and single-item versus pair weights can differ. Check the linked sources before choosing a replacement.

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Spec Big Agnes Rapide SL Insulated Sea to Summit Ultralight Insulated
Weight 540 g · 0.540 kg · 1.19 lb 595 g · 0.595 kg · 1.31 lb
Brand Big Agnes Sea to Summit
Category Sleep System Sleep System
Big Agnes Rapide SL Insulated
540 g

Insulated air sleeping pad (regular) with 4.2 R-value, 3.25in thickness and quilted top baffles for stable, warm backcountry comfort.

See it in your base weight → Full details →
Sea to Summit Ultralight Insulated
595 g

Insulated inflatable pad with R-value 3.7.

See it in your base weight → Full details →

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Big Agnes Rapide SL Insulated vs Sea to Summit Ultralight Insulated: which should you buy?

The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.

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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