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Klymit Insulated Static V Lite vs Zpacks Classic 20°F Sleeping Bag

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

Klymit Insulated Static V Lite is the lighter option — 9 g lighter than the Zpacks Classic 20°F Sleeping Bag (2% less weight). If grams matter to you, that is the one to beat.
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Spec Klymit Insulated Static V Lite Zpacks Classic 20°F Sleeping Bag
Weight 567 g · 0.567 kg · 1.25 lb 576 g · 0.576 kg · 1.27 lb
Brand Klymit Zpacks
Category Sleep System Sleep System
Klymit Insulated Static V Lite
567 g

Insulated air pad at 567g. R-value 4.4, V-shaped chambers with Klymalite synthetic insulation.

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Zpacks Classic 20°F Sleeping Bag
576 g

Ultralight mummy sleeping bag with 900-fill power goose down rated to 20°F. Water-resistant down and Dyneema shell. Weighs 20.3 oz in regular size.

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Klymit Insulated Static V Lite vs Zpacks Classic 20°F Sleeping Bag: which should you buy?

If saving weight is your priority, the Klymit Insulated Static V Lite wins — at 567 g it is 9 g (2%) lighter than the Zpacks Classic 20°F Sleeping Bag (576 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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