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Klymit Insulated Static V Lite Sleeping Pad vs Therm-a-Rest Vesper 20 Sleeping Bag

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

Therm-a-Rest Vesper 20 Sleeping Bag is the lighter option — 5 g lighter than the Klymit Insulated Static V Lite Sleeping Pad (1% less weight). If grams matter to you, that is the one to beat.
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Spec Klymit Insulated Static V Lite Sleeping Pad Therm-a-Rest Vesper 20 Sleeping Bag
Weight 555 g · 0.555 kg · 1.22 lb 550 g · 0.550 kg · 1.21 lb
Brand Klymit Therm-a-Rest
Category Sleep System Sleep System
Klymit Insulated Static V Lite Sleeping Pad
555 g

Ultralight insulated air pad at 555g with R-value around 4.4, weighing just 19.6oz for comfortable three-season backpacking.

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Therm-a-Rest Vesper 20 Sleeping Bag
550 g

900-fill hydrophobic goose down sleeping bag rated to 20°F/-6°C. Ultralight and highly compressible for three-season backpacking.

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Klymit Insulated Static V Lite Sleeping Pad vs Therm-a-Rest Vesper 20 Sleeping Bag: which should you buy?

If saving weight is your priority, the Therm-a-Rest Vesper 20 Sleeping Bag wins — at 550 g it is 5 g (1%) lighter than the Klymit Insulated Static V Lite Sleeping Pad (555 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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