Hyperlite Mountain Gear 2400 Windrider vs Zpacks Arc Blast 55L

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

Zpacks Arc Blast 55L is the lighter option — 60 g lighter than the Hyperlite Mountain Gear 2400 Windrider (12% less weight). If grams matter to you, that is the one to beat.

Spec	Hyperlite Mountain Gear 2400 Windrider	Zpacks Arc Blast 55L
Weight	510 g · 0.510 kg · 1.12 lb	450 g · 0.450 kg · 0.99 lb
Brand	Hyperlite Mountain Gear	Zpacks
Category	Backpack	Backpack

Hyperlite Mountain Gear 2400 Windrider

510 g

Compact Dyneema 40L pack for ultralight overnight trips.

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Zpacks Arc Blast 55L

450 g

Frameless Dyneema pack with excellent load carry for its weight.

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Hyperlite Mountain Gear 2400 Windrider vs Zpacks Arc Blast 55L: which should you buy?

If saving weight is your priority, the Zpacks Arc Blast 55L wins — at 450 g it is 60 g (12%) lighter than the Hyperlite Mountain Gear 2400 Windrider (510 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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