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Hyperlite Mountain Gear Southwest 40L vs Zpacks Nero Classic

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

Zpacks Nero Classic is the lighter option — 495 g lighter than the Hyperlite Mountain Gear Southwest 40L (62% less weight). If grams matter to you, that is the one to beat.
Spec Hyperlite Mountain Gear Southwest 40L Zpacks Nero Classic
Weight 796 g · 0.796 kg · 1.75 lb 301 g · 0.301 kg · 0.66 lb
Brand Hyperlite Mountain Gear Zpacks
Category Backpack Backpack
Hyperlite Mountain Gear Southwest 40L
796 g

Ultralight 40L pack in Dyneema Composite Fabric with roll-top closure, hip belt pockets, and a structured back panel for comfort on demanding trails.

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Zpacks Nero Classic
301 g

Minimalist frameless DCF daypack ideal for ultralight hikers keeping baseweight under 10 lbs. Features roll-top closure and water-resistant Dyneema construction...

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Hyperlite Mountain Gear Southwest 40L vs Zpacks Nero Classic: which should you buy?

If saving weight is your priority, the Zpacks Nero Classic wins — at 301 g it is 495 g (62%) lighter than the Hyperlite Mountain Gear Southwest 40L (796 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 backpack page, or browse the full gear weight database.

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