Zpacks Nero Classic 40L vs Zpacks Nero Classic Ultra Backpack

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

Both weigh the same at 289 g, so choose on features, price and fit.

Spec	Zpacks Nero Classic 40L	Zpacks Nero Classic Ultra Backpack
Weight	289 g · 0.289 kg · 0.64 lb	289 g · 0.289 kg · 0.64 lb
Brand	Zpacks	Zpacks
Category	Backpack	Backpack

Zpacks Nero Classic 40L

289 g

Frameless ultralight pack in 30L or 40L, built from Dyneema CF fabric. One of the lightest load-carrying packs available for thru-hiking.

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Zpacks Nero Classic Ultra Backpack

289 g

Frameless ultralight backpack made from Dyneema Composite Fabric. Minimalist design for SUL hikers. Top-loading with roll-top closure.

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Zpacks Nero Classic 40L vs Zpacks Nero Classic Ultra Backpack: which should you buy?

On weight these two are identical (289 g), so your decision comes down to features, fit and price. Check the full details and current price for each above.

See where both rank against everything else in this category on the lightest backpack page, or browse the full gear weight database.

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