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Atom Packs Pulse EP50 vs Gregory Zulu 35

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

Atom Packs Pulse EP50 is the lighter option — 370 g lighter than the Gregory Zulu 35 (35% less weight). If grams matter to you, that is the one to beat.
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Spec Atom Packs Pulse EP50 Gregory Zulu 35
Weight 680 g · 0.680 kg · 1.50 lb 1,050 g · 1.050 kg · 2.31 lb
Brand Atom Packs Gregory
Category Backpack Backpack
Atom Packs Pulse EP50
680 g

UK-made 50L ultralight thru-hiking pack with a carbon hooped frame and EcoPak fabric, carrying loads up to ~14kg comfortably.

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Gregory Zulu 35
1,050 g

Ventilated 35L daypack with 3D Hydro reservoir sleeve.

Full details →

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Atom Packs Pulse EP50 vs Gregory Zulu 35: which should you buy?

If saving weight is your priority, the Atom Packs Pulse EP50 wins — at 680 g it is 370 g (35%) lighter than the Gregory Zulu 35 (1,050 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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