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Zpacks Classic Sleeping Bag 20F vs Zpacks Zip Around Sleeping Bag

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 Zpacks Classic Sleeping Bag 20F Zpacks Zip Around Sleeping Bag
Weight 533 g · 0.533 kg · 1.18 lb
size Standard-Medium (fits up to 6'0"), 20°F; no size called Regular exists
 612 g · 0.612 kg · 1.35 lb
Brand Zpacks Zpacks
Category Sleep System Sleep System
Zpacks Classic Sleeping Bag 20F
533 g

Mummy-style sleeping bag rated to 20F (-7C) with 900-fill goose down. DCF outer shell for low weight and packability. Water-resistant treatment included.

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Zpacks Zip Around Sleeping Bag
612 g

900-fill-power down sleeping bag with unique side-entry zipper. Eliminates the draft collar for a cleaner, lighter design.

See it in your base weight → Full details →

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Zpacks Classic Sleeping Bag 20F vs Zpacks Zip Around Sleeping Bag: 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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