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Hyperlite Mountain Gear 2400 Windrider vs Osprey Atmos AG 50

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

Hyperlite Mountain Gear 2400 Windrider is the lighter option — 1,390 g lighter than the Osprey Atmos AG 50 (73% less weight). If grams matter to you, that is the one to beat.
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Spec Hyperlite Mountain Gear 2400 Windrider Osprey Atmos AG 50
Weight 510 g · 0.510 kg · 1.12 lb 1,900 g · 1.900 kg · 4.19 lb
Brand Hyperlite Mountain Gear Osprey
Category Backpack Backpack
Hyperlite Mountain Gear 2400 Windrider
510 g

Compact Dyneema 40L pack for ultralight overnight trips.

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Osprey Atmos AG 50
1,900 g

Versatile 50L Anti-Gravity pack for multi-day adventures.

Full details →

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Hyperlite Mountain Gear 2400 Windrider vs Osprey Atmos AG 50: which should you buy?

If saving weight is your priority, the Hyperlite Mountain Gear 2400 Windrider wins — at 510 g it is 1,390 g (73%) lighter than the Osprey Atmos AG 50 (1,900 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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